ADTRAN 4303 PLUS Power Supply User Manual


 
ALARM RELAYS
There are eight alarm relays that provide normally open or normally closed
contacts for each of the following alarms:
Visual Critical
Visual Major
Visual Minor
Audible Critical
Audible Major
Audible Minor
Auxiliary 1
Auxiliary 2
POWER SUPPLY 48 PIN CONNECTOR PINOUT
TOTAL ACCESS 4303 PLUS DC POWER SUPPLY
DC SUPPLY
CLEI: SLPOCDBC_ _
61202335L1-22A
0401
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
FRONT PANEL LEDs
POWER Off Both –48 VDC fuses blown, power not supplied to the shelf,
or incorrect polarity on the voltage supplied to the shelf
Green Power supplied is the correct voltage and polarity; backplane
and hot insertion voltages correct
Amber –48 VDC input and hot insertion voltage present; no back-
plane voltage
Red –48 VDC input present; no backplane voltage and no hot
insertion voltage
TEMP Off Normal
Red Over-temperature condition
DESCRIPTION
The Total Access
®
4303 Plus DC Power Supply is a removable assembly that provides
the voltages necessary for proper system operation. The unit features LEDs for over-
temperature and DC output, an input fuse, and the ability to be hot-swapped when
used with another DC supply in the same chassis. The supply interfaces to the Total
Access backplane through a 48-pin connector. The unit accepts one or two –48 VDC
inputs from the backplane and supplies –48 VDC fused output for use with external
input logic, +5 VDC as hot insertion bias voltage for modules, and +2.1 VDC for back-
plane termination. In addition, the Total Access 4303 Plus DC Supply provides alarm
relay ouputs when installed in slot PS-A.
The following features are supported on the Total Access 4303 Plus DC Power Supply:
Thermal limit indicator with open collector output
DC status indicator on the 2.1 and 5 volt outputs with open collector output
Short circuit protection
Compatible with existing Total Access DC Power Supplies (P/N 1200335L1)
SPECIFICATIONS
Specifications
Input Voltage –42 VDC to –56 VDC
Operating Temperature –40°C to +65°C
Storage Temperature –40°C to +85°C
Relative Humidity Up to 95% noncondensing
Over Temperature Indication 90°C ±5%
–48 VDC Short Circuit Protection Fused 1-amp slow blow
Backplane Voltage Short Circuit Protection Self-mending
Compliance FCC Part 15, UL 60950, NEBS Level III,
GR-1089-CORE
Pin # Row A Signal Row B Signal Row C Signal
1 AUD_CRIT_NO AUD_CRIT_COM AUD_CRIT_NC
2 AUD_MAJ_NO AUD_MAJ_COM AUD_MAJ_NC
3 AUD_MIN_NO AUD_MIN_COM AUD_MIN_NC
4 VIS_CRIT_NO VIS_CRIT_COM VIS_CRIT_NC
5 VIS_MAJ_NO VIS_MAJ_COM VIS_MAJ_NC
6 VIS_MIN_NO VIS_MIN_COM VIS_MIN_NC
7 AUX1_RLY_NO AUX1_RLY_COM AUX1_RLY_NC
8 AUX2_RLY_NO AUX2_RLY_COM AUX2_RLY_NC
9 –48V_A PS_OK PS_TEMP
10 –48V_B 2.1V PS_PRESENT
11 2.1V 2.1V 2.1V
12 –48V_AB_RTN 2.1V VCC
13 GND GND GND
14 GND GND PSRLY_CLK
15 GND PSRLY_LOAD PSRLY_DATAIN
16 FR_GND –48V PSRLY_DATAOUT
JOBAID
#61202335L1-22A#