PSI_InstallationOperation_mn.pdf

P o i n t o f L o a d P o w e r S y s t e m
PSI Series™
SETUP AND OPERATION MANUAL

Comm/net Systems, Inc.
4237–24th Avenue West
Seattle, WA 98199
TEL: 206.282.8670
FAX: 206.282.8684
24/7 Sales & Service
To purchase Comm/net Systems solutions, contact your
Comm/net Systems representative at: (800) 274-0544
or e-mail: sales@commnetsystems.com
About Comm/net Systems
Comm/net Systems, Inc. (CSI) is the leader in high power density communications power
systems. Comm/net offers comprehensive power and communications site systems integration
and deployment services via a national footprint of regional branch offices. Additional
information can be found at www.commnetsystems.com.
© 2017 Comm/net Systems, Inc. All rights reserved. Comm/net Systems, and the Comm/
net Systems logo are registered trademarks of Comm/net Systems, Inc. in the United States
and other countries. All other trademarks, service marks, registered marks, or registered
service marks are the property of their respective owners. Comm/net Systems assumes no
responsibility for any inaccuracies in this document. Comm/net Systems reserves the right to
change, modify, transfer, or otherwise revise this publication without notice.
Document Number: 048-738-30
Revision Level: r04
Published: January 2017

P OINT OF L OAD P OWER S Y S TEM
PSI Series™

PSI Series
ABOUT THIS MANUAL
About This Manual
To reduce the risk of damage to equipment, injury, or death; and to ensure proper
installation and operation of Comm/net Systems products, please be sure to read and
understand the entirety of this manual and any other supplied documentation. Keep
this document in a safe and accessible place for future reference.
Safety and Alert Symbols
The following symbols may appear in this manual, other supplied documentation, or on Comm/net Systems product labeling. The meaning of
this indication is explained below.
NOTICE
INDICATES IMPORTANT INFORMATION REGARDING THE COMPLETE AND PROPER FUNCTION OF A PRODUCT.
TYPICALLY REFERS TO MONITORING CONFIGURATION OR OTHER NON-DANGEROUS SITUATIONS.
CAUTION
INDICATES A HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, COULD DAMAGE
EQUIPMENT/PROPERTY OR COULD RESULT IN MINOR OR MODERATE INJURY.
WARNING
INDICATES A HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, COULD RESULT IN INJURY OR DEATH.
DANGER
INDICATES A HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, WILL RESULT IN SERIOUS INJURY OR DEATH.
Product support
If you have any questions concerning Comm/net Systems products and services, contact our support staff. Our knowledgeable support team
can provide product technical support and answer other questions regarding Comm/net products and services.
In addition to contacting Comm/net Support directly via phone or e-mail, our online help desk is available 24 hours a day, 7 days a week. The
help desk includes answers to commonly asked questions and self-help articles as well as an online ticket submission system if you need to
contact Comm/net after normal business hours.
y
y Comm/net support is available by phone or e-mail Monday – Friday from 8am – 4:30pm Pacific Standard Time.
y
y The online web portal is available 24/7 to submit support requests and general questions, or view the FAQ and self-help articles.
NOTE: All questions submitted to the web portal will be answered during normal business hours.
y
y Phone: 1-800-274-0544
y
y E-mail: support@commnetsystems.freshdesk.com
y
y Online Web Portal: https://commnetsystems.freshdesk.com

PSI Series
TABLE OF CONTENTS
Table of Contents
Section 1: Purpose and Applicability�� 1
1.1 Product Model��1
Section 2: Theory of Operation�� 1
2.1 Features��1
Section 3: Unpacking and Inspection�� 2
3.1 Package Contents��2
Section 4: Installation�� 3
4.1 Installation Preparation��3
4.1.1 Elevated Operating Ambient��3
4.1.2 Reduced Air Flow ��3
4.1.3 Mechanical Loading��3
4.1.4 Circuit Overloading��3
4.1.5 Reliable Earthing��3
4.1.6 Disconnect Device ��3
4.2 Mechanical Mounting (All Models)��4
4.3 Ground Installation��4
4.4 Electrical Installation��5
4.4.1 Input Connections ��5
4.4.2 Output Connections AM Lug Landing (016-1740-10 and 016-1742-10) ��6
4.4.3 Output Connections AM Connectorized (016-1741-10 and 016-1743-10)��6
4.4.4 Output Connections GMT Terminal Block (016-1748-10 and 016-1750-10)��7
4.4.5 Output Connections GMT Connectorized (016-1749-10 and 016-1751-10)��7
4.5 Alarm Installation��8
4.6 Installing the Rectifiers��8
4.7 Installing DC Circuit Protection ��9
4.7.1 Installing DC Circuit Breakers (AM Versions)��9
4.7.2 Installing GMT Fuses (GMT Versions)��9
Section 5: Operation��11
5.1 Rectifier Status LEDs��11
5.2 Panel Status LEDs��11
5.2.1 AM Versions��11
5.2.2 Panel Status LEDs (GMT Versions)��11
5.2.3 Breaker Inventory (AM Versions Only)�� 12
5.3 Voltage Test Points�� 12
5.4 Alarm Relay Test�� 12
Section 6: Product Specifications��13
Appendix A: Mechanical Illustrations��14

PSI Series
PAGE vi - vi
THIS PAGE INTENTIONALLY LEFT BLANK

PSI Series
Purpose and Applicability - PAGE 1
Section 1: Purpose and Applicability
This document covers the installation and operation of the various configurations of
the Comm/net PSI.
1.1 Product Model
This document applies to Comm/net Systems, Inc. products in the following model
configurations:
y
y 016-1740-10 single input PSI with (4) AM bullet breaker positions, and lug landing
outputs; PSI48-1AL
y
y 016-1741-10 single input PSI with (4) AM bullet breaker positions, and
connectorized outputs; PSI48-1AC
y
y 016-1742-10 dual input PSI with (4) AM bullet breaker positions, and lug landing
outputs; PSI48-2AL
y
y 016-1743-10 dual input PSI with (4) AM bullet breaker positions, and connectorized
outputs; PSI48-2AC
y
y 016-1748-10 single input PSI with (8) GMT fuse positions, and terminal block
outputs; PSI48-1GT
y
y 016-1749-10 single input PSI with (8) GMT fuse positions, and connectorized
outputs; PSI48-1GC
y
y 016-1750-10 dual input PSI with (8) GMT fuse positions, and terminal block outputs;
PSI48-2GT
y
y 016-1751-10 dual input PSI with (8) GMT fuse positions, and connectorized outputs;
PSI48-2GC
Section 2: Theory of Operation
The PSI family provides reliable point of use DC power for facilities without large DC
power infrastructure in place.
2.1 Features
y
y 1RU compact size
y
y 4 total DC circuits for AM breaker models (2A/2B for dual input)
y
y 8 total DC circuits for GMT fuse models (4A/4B for dual input)
y
y High power density rectifiers
y
y DC voltage test points
y
y IEC line cords for AC Input

PSI Series
PAGE 2 - Unpacking and Inspection
Section 3: Unpacking and Inspection
The Comm/net Systems PSI was carefully packaged at the factory to withstand the
normal rigors of shipping, however, you should carefully inspect the box and contents
to confirm that no damage has occurred in transit. Most shipping carriers require
notification of shipping damage within twenty-four hours of delivery, and it is the
responsibility of the recipient to inspect the shipment immediately upon receipt.
3.1 Package Contents
y
y PSI 1 RU Point of Use Power System
y
y (1 or 2) Rectifiers (depending on what was purchased)
y
y Installation kit
y
y Breakers/Fuses (if purchased)

PSI Series
Installation - PAGE 3
Section 4: Installation
4.1 Installation Preparation
4.1.1 Elevated Operating Ambient
If you install the panel in a closed or multi-unit rack assembly, the operating ambient
temperature of the rack environment may be greater than room ambient. Therefore,
take care to install the equipment in an environment compatible with the maximum
ambient temperature (TMA) specified by the manufacturer.
4.1.2 Reduced Air Flow
Installation of the equipment in a rack should be such that the amount of air flow
required for safe operation of the equipment is not compromised.
4.1.3 Mechanical Loading
Mounting of the equipment in the rack should be such that a hazardous condition is
not achieved due to uneven mechanical loading.
4.1.4 Circuit Overloading
Give consideration to the connection of the equipment to the supply circuit and
the effect that overloading of the circuits might have on overcurrent protection and
supply wiring. Use appropriate consideration for equipment nameplate ratings when
addressing this concern.
4.1.5 Reliable Earthing
Maintain reliable earthing of rack-mounted equipment. Pay particular attention to
supply connections other than direct connections to the branch circuit (e.g., use of power
strips).
4.1.6 Disconnect Device
A readily accessible disconnect device must be incorporated into the building
installation wiring.

PSI Series
PAGE 4 - Installation
4.2 Mechanical Mounting (All Models)
NOTICE
y
y THIS PRODUCT MUST BE INSTALLED WITHIN A RESTRICTED
ACCESS LOCATION WHERE ACCESS IS THROUGH THE USE
OF A TOOL, LOCK AND KEY, OR OTHER MEANS OF SECURITY,
AND IS CONTROLLED BY THE AUTHORITY RESPONSIBLE
FOR THE LOCATION. THIS PRODUCT MUST BE INSTALLED
AND MAINTAINED ONLY BY QUALIFIED TECHNICIANS.
y
y THE MOUNTING EARS MUST BE INSTALLED BEFORE
THE RECTIFIER MODULES ARE INSERTED.
The PSI can be mounted in a 19 in. rack configuration, 23 in. rack configuration, front
flush, or offset mid-mount orientation.
Step 1. Attach the two (2) front mounting ears in the appropriate configuration using
the included hardware and screw driver (990-103-10). See Figure 1.
Step 2. Place the mounting ears on the outside of the chassis and attach the mounting
screws form the inside of the rectifier slots.
Step 3. Insert the panel into the rack and secure the front mounting ears to the rack
using the included #12-24 hardware.
4.3 Ground Installation
CAUTION
DO NOT ENERGIZE THE PANEL BEFORE
CHASSIS GROUND IS CONNECTED.
Table 1. GROUND TERMINATION SUMMARY
LANDING TYPE HOLE/STUD SIZE
CENTER TO
CENTER
MAX LUG
WIDTH
RECOMMENDED
TORQUE VALUE
Threaded Insert 1/4 in-20 5/8 in N/A 100 in·lbs
The chassis ground is located on the side of the panel. Refer to mechanical drawings
found in Appendix A on Page 14 for greater detail. A minimum of #6 AWG chassis
ground cable is required.
IMPORTANT: Grounding hardware not included. A properly-sized grounding
conductor must be installed per NEC (250.122).
Step 1. Secure the ground cable to the chassis by tightening 1/4 in. hardware. Make
sure heat shrink and no-oxide compound are applied appropriately prior to
attachment.
Step 2. Torque the fasteners to 100 in.
lbs.
3
4
5
6
GEOMETRIC SYMBOLS CONFORM
TO ANSI Y14.5M-1982
COLOR:
FINISH:
DESIGNED DATE:
DESIGNED BY:
BREAK CORNERS SHARP EDGES
OUTSIDE BEND RADII:
0 TO 0.080 - 1.5 X MATERIAL THICKNESS
OVER 0.080 - 2 X MATERIAL THICKNESS
1/8/20
DATE:
DRAWN BY:
THIRD ANGLE
MATERIAL:
.X ± .050
.XX ± .015
.XXX ± .010
CADFILE:
ANGLES ± 0.5°
TOLERANCES UNLESS OTHERWISE NOTED
B
Figure 1. Mounting Position
REV.
r01
6 5 4
Figure 2. Chassis Ground Connection

PSI Series
4.4 Electrical Installation
WARNING
y
y MULTIPLE POWER FEEDS MAY BE PRESENT. ENSURE
ALL INPUT POWER FEEDS ARE TURNED OFF BEFORE
INSTALLING OR SERVICING THE EQUIPMENT.
y
y THE PANEL MUST BE PROTECTED BY A LISTED
CIRCUIT BREAKER OR BRANCH RATED FUSE. THE
CIRCUIT BREAKER OR FUSE MUST BE RATED: 20A
NOTICE
y
y MAKE SURE THAT ALL DC POWER CABLES HAVE
HEAT SHRINK APPLIED PRIOR TO TERMINATION
AND THAT NO-OXIDE COMPOUND IS APPLIED TO
ALL COPPER-TO-COPPER CONNECTIONS.
y
y USE ONLY COMPONENTS AND CRIMPING TOOLS
APPROVED BY AGENCIES OR CERTIFYING BODIES
RECOGNIZED IN YOUR COUNTRY OR REGION.
4.4.1 Input Connections
For each connection:
Step 1. Connect the hot input cable as illustrated (see Figure 3). Insert the AC input
connector into the rear of the panel. The inputs are located on the outer edge
of the panel. On dual input models, the A input is on the right and the B on the
left when viewing from the rear.
Figure 3. Input Connection
Figure 4. Input Connection (plugged in)

PSI Series
4.4.2 Output Connections AM Lug Landing
(016-1740-10 and 016-1742-10)
There are (4) lug landing blocks at the rear of the panel. In each block, hot is on the
right, return on the left. Use 90 degree lugs in limited rack space applications. See rear
label for circuit mapping information.
Table 2. TERMINATION INFORMATION 016-1740-10 AND 016-1742-10
LANDING TYPE HOLE/STUD SIZE CENTER TO
CENTER
MAX LUG
WIDTH
RECOMMENDED
TORQUE VALUE
Stud 1/4 in-20 5/8 in 5/8 in 50 in·lbs
For each connection:
Step 1. Remove the plastic safety cover(s) from the lug landing block. They are held on
by built-in retaining clips. Pry off the plastic cover to remove it.
Step 2. Connect the return cable to the left side of the block of the PSI (see Figure 5).
Step 3. Connect the hot cable to the right hand side of block (see Figure 6).
Step 4. Torque each fastener to 100 in·lbs.
WARNING
FAILURE TO REPLACE THE PLASTIC COVERS
WILL CREATE AN ELECTRICAL HAZARD.
Step 5. Attach the plastic safety cover(s) removed in Step 1. Place them over the
terminal block and press until they snap into place.
4.4.3 Output Connections AM Connectorized
(016-1741-10 and 016-1743-10)
There are (4) positive latching DC connector positions for the AM breaker output
circuits. Cable whips are available in a variety of lengths and wire gauges. Contact
Comm/net sales for cable whip ordering information. See the rear label for circuit
mapping information.
Step 1. Attach the optional lacing bar if desired using the included hardware (see
Figure 7).
Step 2. Insert the DC connector into the desired output. The connectors are keyed to
ensure correct polarity (see Figure 7).
Step 3. Lace the cable whips to the lacing bar if installed.
Figure 5. Return Cable
Figure 6. Hot Cable
7 6 5 4
Figure 7. AM Connectorized Outputs
90 DEGREE LUG
STRAIGHT LUG
90 DEGREE LUG
STRAIGHT LUG

PSI Series
4.4.4 Output Connections GMT Terminal Block
(016-1748-10 and 016-1750-10)
There are (8) output terminal block positions in a stair step configuration. The return
(+) connections are on the bottom and the hot (-) connections are on the top of the
terminal block. Refer to the rear label for channel mapping information.
Table 3. TERMINATION INFORMATION 016-1748-10 AND 016-1750-10
LANDING TYPE HOLE/STUD SIZE
CENTER TO
CENTER
MAX LUG
WIDTH
RECOMMENDED
TORQUE VALUE
Screw Terminal #6 N/A .380 in 7 in·lbs
Step 1. Remove the rear safety cover using the (2) screws on each side (see Figure 8).
Step 2. Attach the return (+) connection. It is located on the lower stair step
(see Figure 9).
Step 3. Attach the hot (-) connection. It is located on the upper portion of the stair step
terminal block (see Figure 9).
Step 4. Torque fasteners to 7 in·lbs.
WARNING
FAILURE TO REPLACE THE PLASTIC COVERS
WILL CREATE AN ELECTRICAL HAZARD.
Step 5. Install the rear plastic safety cover removed in Step 1 by using the (2) screws
removed in Step 1.
4.4.5 Output Connections GMT Connectorized
(016-1749-10 and 016-1751-10)
There are (8) positive latching DC connector positions for the GMT output circuits.
Cable whips are available in a variety of lengths and wire gauges.
Contact Comm/ net sales for cable whip ordering information. See the rear label for
circuit mapping information.
Step 1. Attach the optional lacing bar if desired using the included hardware (see
Figure 10).
Step 2. Insert the DC connector into the desired output. The connectors are keyed
with a lock to ensure correct polarity (see Figure 10).
Step 3. Lace the cable whips to the lacing bar if installed.
3
4
5
6
7
TO ANSI Y14.5M-1982
OUTSIDE BEND RADII:
MATERIAL:
.X ± .050
.XX ± .015
.XXX ± .010
CADFILE:
ANGLES ± 0.5°
Figure 8. Rear Safety Cover
4
5
6
7
M
C
Figure 9. Connecting Return Outputs
REV.
r01
8 7 6 5 4 3
TO ANSI Y14.5M-1982
C
FI
DE
D
D
D
MATERIAL:
.X ± .050
.XX ± .015
.XXX ± .010
ANGLES ± 0.5°
Figure 10. GMT Version Connector and Lacing Bar

PSI Series
0
.984
3.583
6.181
8.780
17.000
19.000
REV. DESCRIPTION
INITAL RELEASE
4
6
6 5 4 3
TO ANSI Y14.5M-1982
COLOR:
FINISH:
DESIGNED DATE:
DESIGNED BY:
OUTSIDE BEND RADII:
3
DATE:
DRAWN BY:
THIRD ANGLE
MATERIAL:
.X ± .050
.XX ± .015
.XXX ± .010
CADFILE:
ANGLES ± 0.5°
Alarm Ports
Form C Dry Contacts
Figure 11. Alarm Contacts (GMT Connectorized Pictured)
REV.
r01
A
B
C
D
4
5
6
7
8
8 7 6 5 4
TO ANSI Y14.5M-1982
OUTSIDE BEND RADII:
0 TO 0.080 - 1.5 X MATERIAL THICKNE
OVER 0.080 - 2 X MATERIAL THICKNE
MATERIAL:
.X ± .050
.XX ± .015
.XXX ± .010
CADFILE:
ANGLES ± 0.5
TOLERANCES UNLESS OTHERWISE NO
Figure 12. Installing Rectifiers
4.5 Alarm Installation
NOTICE
WHEN DAISY CHAINING, THE ALARM MUST
BE MONITORED NORMALLY OPEN.
The PSI has Form-C dry alarm contacts for remote alarm monitoring.
If alarm monitoring is required, (2) 8p8c- (RJ-45) modular jacks are provided for alarm
connections. The (2) jacks support easy daisy chaining of panels.
The 8p8c module jacks can be found on the center rear of the panel. Refer to the
mechanical drawings found in Appendix A on Page 14 for the exact location depending
on the configuration ordered.
Step 1. Plug in a CAT-5 or CAT-6 UTP Ethernet cable with a TIA/EIA T568B termination
(see Table 4 for termination pinout) into the alarm jack.
Step 2. Connect the cable to the site alarm monitoring system.
Step 3. If daisy chaining is required connect a Cat-5 or Cat-6 UTP Ethernet cable with
TIA/EIA T568B termination into the second jack and connect the other end to
the next panel in the chain. Repeat this process until all panels are connected.
Table 4. ALARM CONTACT PINOUT
PIN 1 PIN 2 PIN 3 PIN 4 PIN 5 PIN 6 PIN 7 PIN 8
(A) COM (A) NC (A) NO Reserved (A) COM (A) NC (A) NO Reserved
4.6 Installing the Rectifiers
The PSI comes with two hot swappable rectifiers.
Step 1. Release the retaining clips on the front of the rectifier. There is a retaining clip
on each side of the front of the rectifier. Release both before inserting the
rectifier.
Step 2. Ensure the rectifier slot in the PSI chassis is clear of debris, then slide the
module into the slot (see Figure 12).
Step 3. Close both retaining clips so that the rectifier seats fully into the slot.

PSI Series
4.7 Installing DC Circuit Protection
4.7.1 Installing DC Circuit Breakers (AM Versions)
NOTE: 016-1740-10, 016-1741-10, 016-1742-10, 016-1743-10
CAUTION
y
y MAKE SURE CIRCUIT BREAKERS ARE IN THE
OFF POSITION PRIOR TO INSTALLATION.
y
y ENSURE CIRCUIT BREAKERS ARE COMPLETELY INSERTED.
NOTICE
USE LISTED CIRCUIT BREAKERS ONLY.
Step 1. Remove the breaker compartment door from the panel by loosening the two
thumb screws on the door.
Step 2. Select an AM Style breaker of sufficient ampacity and insert it into the desired
output circuit, making sure to seat the breaker securely (see Figure 13). Ensure
breakers are in the off position when installing them.
Step 3. When all desired circuit breakers have been installed, reinstall the breaker
compartment door and secure it with the thumb screws.
Step 4. Inventory all installed breakers. See section 5.3 on Page 12 for breaker
inventory instructions.
4.7.2 Installing GMT Fuses (GMT Versions)
NOTE: Applies to 016-1748-10, 016-1749-10, 016-1750-10, 016-1751-10
NOTICE
y
y USE BUSSMANN GMT TYPE FUSES ONLY.
y
y DC FUSE INTERRUPT RATING OF AT LEAST 450A REQUIRED.
Step 1. Select a GMT fuse of the desired ampacity.
Step 2. Insert the fuse into the position corresponding the desired circuit. Press the
fuse into the holder until it is fully seated. The fuse flag should be facing up.
A
B
C
D
5
6
7
8
L
i
n
e
L
o
a
d
Load
Line
Figure 13. Installing DC Breakers
Circuit
5
Circuit
6
Circuit
7
Circuit
8
Circuit
4
Circuit
3
Circuit
2
Circuit
1
Dual Input A1 A2 A3 A4 B4 B3 B2 B1
Single Input 1 2 3 4 5 6 7 8
Figure 14. Installing GMT Fuses

PSI Series

PSI Series
A
B
C
6
7
8
AC Power Status LED
Figure 15. Top LED; AC Power Status LED
B
C
D
Module Status LED
Figure 16. Bottom LED; Module Status LED
A
B
C
D
8 7 6 5
A Side
B Side
Figure 17. Panel Status LEDs
Section 5: Operation
5.1 Rectifier Status LEDs
Table 5. TOP LED; AC POWER STATUS (SEE FIGURE 15)
COLOR STATUS INDICATED
Green AC in range (normal operation)
Red Module failure / shutdown
Table 6. BOTTOM LED; MODULE STATUS (SEE FIGURE 16)
Off Normal
Solid Yellow High temperature, low fan speed
Blinking Yellow Communication failure
5.2 Panel Status LEDs
5.2.1 AM Versions
There are two LEDs on the front of the panel. For an A/B panel, one LED corresponds
to the A side and one LED corresponds to the B side. For single input panels, the LED
corresponds to the side in which the LED is located (see Figure 17).
Table 7. A OR B LED; DC POWER STATUS
Green DC distribution OK
Red DC breaker tripped / not inventoried
5.2.2 Panel Status LEDs (GMT Versions)
Each group of fuses has two LEDs. One Indicates DC power, the other indicates a
failed alarm. Their states are described in Table 8 below. The Upper LEDs are the power
status, the lower LEDs are for fuse fail.
Table 8. GMT DC STATUS LEDS
LED
COLOR NORMAL/
COLOR ALARM
STATUS INDICATED
Power Blue/Off DC distribution OK / DC Off
Alarm Off/Red Normal / Fuse fail

PSI Series
A1(1) A2(2) B2(3) B1(4)
Figure 19. Breaker Inventory Switch
Alarm Test Point
Voltage Test Points
Alarm LEDs
Power LEDs
1
2
3
4
5
6
7
8
A
Figure 18. GMT Front Features
REV.
r01
B
C
D
8 7 6 5 4
GEOMETRIC SYMBOLS CONF
TO ANSI Y14.5M-1982
MATERIAL:
A Voltage
Test Point
B Voltage
Test Point
Figure 20. Voltage Test Points AM Versions
5.2.3 Breaker Inventory (AM Versions Only)
Breaker inventory is performed using the dip switches located inside the breaker
compartment.
Step 1. Remove the breaker compartment door by loosening the two thumb screws.
Step 2. Locate the dip switch group. There is one dip switch for each of the breaker
positions. See Figure 19 for the designation of each breaker.
Step 3. Turn on the dip switch that corresponds to each breaker installed in the panel.
Step 4. Replace the breaker compartment door.
NOTE: Breaker positions in parenthesis apply to single input model.
5.3 Voltage Test Points
There are voltage test points for the DC output. For A/B configuration panels,
there is a set of test points for each side. On single input models, the two sets of test
points are in common. For AM versions, the test points are located inside the breaker
compartment (see Figure 20). For GMT Versions, they are located on the face of the panel
(see Figure 18).
To use the test points, insert the leads of a multi-meter into the test points. They are
color coded for polarity. Red is (+) and black is (-).
5.4 Alarm Relay Test
A small switch is provided to test the function of the Form-C dry alarm contacts.
To test the alarm output:
Step 1. For AM versions, remove the front door of the panel by loosening the two
thumbscrews. For GMT versions, it is located in the center for the panel face.
Step 2. Locate the alarm test switch. It is located in the center of the panel between
the breakers for AM versions (see Figure 19). It is located in the center face of
the panel on GMT Versions (see Figure 18).
Step 3. Depress the switch to cause a test alarm.

PSI Series
Product Specifications - PAGE 13
Section 6: Product Specifications
Table 9. PRODUCT SPECIFICATIONS BY PART NUMBER
SPECIFICATION 016-1740-10 016-1741-10 016-1742-10 016-1743-10 016-1748-10 016-1749-10 016-1750-10 016-1751-10
Model Name PSI48-1AL PSI48-1AC PSI48-2AL PSI48-2AC PSI48-1GT PSI48-1GC PSI48-2GT PSI48-2GC
Input Voltage 250V AC Max 250V AC Max 250V AC Max 250V AC Max 250V AC Max 250V AC Max 250V AC Max 250V AC Max
Input Current Max Depends on installed rectifier; see Table 10
Output Current Max 60A 60A 60A 60A 60A 60A 60A 60A
Maximum
Interruption Device 20A 20A 20A 20A 20A 20A 20A 20A
Interrupt Rating
Maximum Per
Circuit Load 60A 60A 60A 60A 20A 20A 20A 20A
Maximum
Continuos DC Fuse
load (8A) N/A N/A N/A N/A
80% Fuse
Rating
80% Fuse
Rating
80% Fuse
Rating
80% Fuse
Rating
Maximum
Continuos DC Fuse
load (8A-20A) N/A N/A N/A N/A
70% Fuse
Rating
70% Fuse
Rating
70% Fuse
Rating
70% Fuse
Rating
Dimensions
(WxDxH)
17 in x 19.125 in
x 1 .75 in
17 in x 19.125 in
x 1 .75 in
17 in x 19.125 in
x 1 .75 in
17 in x 19.125 in
x 1 .75 in
17 in x 19.125 in
x 1 .75 in
17 in x 19.125 in
x 1 .75 in
17 in x 19.125 in
x 1 .75 in
17 in x 19.125 in
x 1 .75 in
Rack Mount
Options 19 or 23 in 19 or 23 in 19 or 23 in 19 or 23 in 19 or 23 in 19 or 23 in 19 or 23 in 19 or 23 in
Table 10. RECTIFIER MODULES AND SPECIFICATION
PART NUMBER OUTPUT VOLTAGE OUTPUT POWER EFFICIENCY* INPUT CURRENT (MAX)
010-738-10 -48V (Fixed) 2000W 96% 12.5A
010-739-10 -48V (Fixed) 2500W 92.5% 18A
010-740-10 -48V (Fixed) 2900W 95% 18A

PSI Series
PAGE 14 - Product Specifications
PSI Series
PAGE 14
17.000
19.000
1.720
0
18.003
18.506
19.057
1/A1
Hot
1/A1
Rtn
2/A2
Hot
2/A2
Rtn
4/B2
Hot
4/B2
Rtn
3/B1
Rtn
3/B1
Hot
Breaker Position Orientation
(Single Input/Dual Input)
2/A2
1/A1
4/B2
3/B1
Output Circuits
Appendix A: Mechanical Illustrations
Figure 21. 016-1740-10 (Single Input) and 016-1742-10 (Dual Input) PSI with AM Breakers

PSI Series
- PAGE - PAGE
PSI Series
PAGE 15
0
.879
3.478
6.076
8.675
15.278
15.903
Ground
1/4-20 Clinch Nuts
0.625 ctc
Both Sides
.730
.640
.625
C20 IEC Inlet
16A 250VAC
C20 IEC Inlet
16A 250VAC
Alarm Ports
Form C Dry Contacts
1/4-20 Studs
Figure 22. 016-1740-10 (Single Input) and 016-1742-10 (Dual Input) PSI with AM Breakers

PSI Series
PAGE 16 - 16
PSI Series
PAGE 16
17.000
19.000
1.720
0
18.003
2/A2 4/B2 3/B1
1/A1
2/A2
1/A1
4/B2
3/B1
Breaker Position Orientation
Output Circuits
Figure 23. 016-1741-10 (Single Input) and 016-1743-10 (Dual Input) Connectorized PSI with AM Breakers

PSI Series
- PAGE - PAGE
PSI Series
PAGE 17
0
.879
3.478
6.076
8.675
15.278
15.903
B Side
C20 IEC Inlet
16A 250VAC
A Side
C20 IEC Inlet
16A 250VAC
Alarm Ports
Form C Dry Contacts
Ground
1/4”-20 Clinch Nuts
0.625”ctc
Both Sides
Figure 24. 016-1741-10 (Single Input) and 016-1743-10 (Dual Input) Connectorized PSI with AM Breakers

PSI Series
PAGE 18 - 18
PSI Series
PAGE 18
17.000
19.000
Alarm Test Point
Voltage
Test Point
Voltage
Test Point
Alarm LED
Power LED
1/A1
2/A2
3/A3
4/A4
5/B4
6/B3
7/B2
8/B1
8/B1
7/B2
6/B3
5/B4
4/A4
3/A3
2/A2
1/A1
Output Circuits
Fuse Positions
Figure 25. 016-1748-10 (Single Input) and 016-1750-10 (Dual Input) PSI with GMT Fuses

PSI Series
- PAGE - PAGE
PSI Series
PAGE 19
0
.984
3.583
6.181
8.780
14.160
14.785
18.118
19.064
Ground
1/4-20 Clinch Nuts
0.625 ctc
.317 TYP
Alarm Ports
Form C Dry Contacts
C20 IEC Inlet
16A 250VAC
C20 IEC Inlet
16A 250VAC
Hot Side Terminal Block
Return Side Terminal Block
Hot Side Terminal Block
Return Side Terminal Block
Rear Cover Mounts to 1in Standoff
with 6-32 Hardware
Terminal Blocks Use Standard
#6 Ring or Fork Lugs
Figure 26. 016-1748-10 (Single Input) and 016-1750-10 (Dual Input) PSI with GMT Fuses

PSI Series
PAGE 20 - 20
PSI Series
PAGE 20
17.000
19.000
Alarm LED
Power LED
Alarm Test Point
Voltage
Test Point
Voltage
Test Point
1/A1
2/A2
3/A3
4/A4
5/B4
6/B3
7/B2
8/B1
Fuse Positions
Figure 27. 016-1749-10 (Single Input) and 016-1751-10 (Dual Input) Connectorized PSI with GMT Fuses

PSI Series
- PAGE - PAGE
PSI Series
PAGE 21
0
.984
3.583
6.181
8.780
14.160
14.785
18.118
Ground
1/4-20 Clinch Nuts
0.625 ctc
Alarm Ports
Form C Dry Contacts
C20 IEC Inlet
16A 250VAC
C20 IEC Inlet
16A 250VAC
Connectorized Outputs
1/A1
2/A2
3/A3
4/A4
5/B4
6/B3
7/B2
8/B1
Output Circuits
Figure 28. 016-1749-10 (Single Input) and 016-1751-10 (Dual Input) Connectorized PSI with GMT Fuses

PSI Series
PAGE 22 - 22
PSI Series
PAGE 22
NOTES:

About Comm/net Systems
Comm/net Systems, Inc. (CSI) is the leader in high power density
communications power systems. Comm/net offers comprehensive
power and communications site systems integration and deployment
services via a national footprint of regional branch offices. Additional
information can be found at www.commnetsystems.com.
Corporate Headquarters
Comm/net Systems, Inc.
4237–24th Avenue West
Seattle, WA 98199
TEL: 206.282.8670
FAX: 206.282.8684
www.commnetsystems.com
24/7 Sales Service
To purchase Comm/net Systems solutions, contact your
Comm/net Systems representative at: (800) 274-0544
or e-mail: sales@commnetsystems.com
© 2017 Comm/net Systems, Inc. All rights reserved. Comm/net Systems, and the Comm/net Systems logo are registered trademarks of Comm/net Systems, Inc. in the United States and other countries. All other
trademarks, service marks, registered marks, or registered service marks are the property of their respective owners. Comm/net Systems assumes no responsibility for any inaccuracies in this document. Comm/net
Systems reserves the right to change, modify, transfer, or otherwise revise this publication without notice.
Document Number: 048-738-30 | Revision Level: r04 | Published: January 2017

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