Adtran 4303 PLUS User Manual download pdf

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#

1 2

DC SUPPLY 1
TURNUP STEPS 2

Summary of Contents

Page 1 - DC SUPPLY

ALARM RELAYSThere are eight alarm relays that provide normally open or normally closed contacts for each of the following alarms: Visual Critical Vi

Page 2 - TURNUP STEPS

TURNUP STEPSTo install the Total Access 4303 Plus DC Power Supply, perform the following steps:After unpacking the Total Access 4303 Plus DC Power Sup

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Adtran 4303 PLUS User Manual

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