P30108 External Power Supply
120VAC to 48 VDC
With Battery Backup
Description & Installation
Printed in USA T0399 Rev. B
Table of Contents
1.0 PRODUCT SCOPE 2
2.0 PRODUCT OVERVIEW 2
2.1 System Requirements 2
2.2 Intended Uses 2
3.0 PRODUCT FEATURES 2
4.0 INSTALLATION 2
4.1 Installation Instructions 3
Figure 1: Front Panel 3
5.0 PHYSICAL CHARACTERISTICS 3
5.1 Mechanical Configuration 3
Table 1: Physical Dimensions 3
5.2 Environmental Requirements 4
6.0 SPECIFICATIONS 4
Table 2: Performance Specifications 4
7.0 MAINTENANCE 4
Figure 2: Batteries Connection Diagram 4
Page 1
1.0 PRODUCT SCOPE
This document describes the technical specifications, technical requirements and
installation instructions for the P30108, Lyte Lynx® 120 VAC to -48VDC External
Power Supply. It provides an understanding of the basic functions and features
available with this product.
2.0 PRODUCT OVERVIEW
P30108 Power Supply
2.1 System Requirements
SNC’s P30108 power supply is designed to externally power a 3-slot (P30075),
6-slot (P30112) or a 12-slot (P30069) Lyte Lynx Card Cage, requiring -48VDC for
station-side operation. Refer to document T0335 (P30075 3-Slot Card Cage),
T0359 (P30112 6-Slot Card Cage) and T0349 (12-Slot Card Cage) shipped with
the Lyte Lynx® card shelves for specifications and Installation information. A
local 120VAC power source is required for this power supply.
2.2 Intended Uses
The Power Supply is used to power the electronics on the station (upper) side of
the Lyte Lynx® fiber optic isolation cards which require -48VDC for operation.
The P30108 Power Supply converts 120VAC power from a local source to
48VDC.
NOTE: ALL fiber optic type cards (Voice, ISDN, ADSL, OPX) used with this
power supply must be optioned for 48VDC.
Lyte Lynx® systems are intended for use at power substations and similar
locations where high voltage isolation is required on the incoming copper telecom
pairs to protect the telecom network from harm and to provide a personnel safety
barrier against high voltages. This specifically includes protection from
longitudinal voltage surges and Ground Potential Rise (GPR) that may occur
during power system faults or lightning strikes. It may also be used to power any
equipment at substations or high voltage locations utilizing “smart jacks” which
requires -48 volts DC for proper operation.
3.0 PRODUCT FEATURES
The P30108 is an external stand-alone power supply designed to be used with
Lyte Lynx® 3-slot, 6-slot and 12-slot card cages. The power supply connects to a
120VAC local power source at the substation and converts it to 48VDC. The
power supply accepts a wide range of AC voltage and provides a maximum
power output of 65 watts.
Page 2
Lyte%Lynx%%%%AC/DC%Power%Supply
GND
TM
BAT
'(48
48VDC (Output
P30108
AC (Input
___
_
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4.0 INSTALLATION
To provide personnel isolation from local ground, stand on a thick
rubber mat and use other adequate insulation devices (rubber gloves)
when working on the Lyte Lynx® system.
4.1 Installation Instructions
A. Using the mounting brackets and screws provided, mount the brackets onto a
non-metallic wall or backboard near the Lyte Lynx® card cage.
B. Position the power supply so the input and output wires will not be stressed
when they are connected.
C. Connect a 22 AWG wire or larger from the “GND” terminal on the power supply
to “GND” terminal connector, located inside the card cage on the station side
backplane. Connect a same size wire from –48 terminal on the power supply to
–48V terminal connector in the card cage. See Figure 1 below and the
document that comes with the card cage for details.
D. Run the AC cord from the AC Input to a 120VAC outlet.
Figure 1: P30108 Power Supply – Front Panel
5.0 PHYSICAL CHARACTERISTICS
5.1 Mechanical Configuration
Table 1: Physical Dimensions
P30108
Dimensions
Height
3.50” (8.89cm)
Width
10.38” (26.35cm)
Depth
11.50” (29.21cm)
Weight
10 Lbs (4.5 Kg)
Page 3
5.2 Environmental Requirements
The Lyte Lynx® system may be installed in an indoor or moderate
outdoor environment and is guaranteed operable in temperatures ranging
from -10°C to 60°C (14°F to 140°F) under humidity conditions from
20–90% relative humidity non-condensing.
6.0 SPECIFICATIONS
Table 2: Performance Specifications
PARAMETER
SPECIFICATIONS
Input Voltage Range
90 VAC – 264 VAC
127 VDC – 370 VDC
Input Frequency Range
47 Hz – 440 Hz
Output Voltage
48 VDC +/- 2%
Output Power
65 Watts
Output Current Range
0 – 1.5 Amps
Input/Output/Ground Isolation
100 MΩ / 500V
7.0 MAINTENANCE
7.1 Battery Replacement
a. Disconnect AC Power.
b. Loosen the four Phillips head screws on the bottom of the power supply,
then carefully remove the cover.
c. Disconnect all spade terminals on batteries. Disconnect all jumper wires
spade terminals from batteries.
d. Replace with four 12V 2.2AH sealed lead acid batteries.
e. Reconnect battery terminals. (See Figure 2)
f. Position cover on power supply. Insert and firmly tighten screws.
Page 4
Figure 2: Batteries
Connection Diagram
For further information or for technical support – call 800-558-3325
or visit www.sncmfg.com
SNC Manufacturing Co., Inc.
101 West Waukau Ave., Oshkosh, WI 54902-7299
800-558-3325 or 920-231-7370 FAX 920-231-1090
E-mail: telecom@sncmfg.com
Website: www.sncmfg.com
Page 5 TO399 Rev. B – 09/12
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