ADTRAN 4303 PLUS specifications FRONT PANEL LEDs, Description, Specifications, Alarm Relays, Temp

TOTAL ACCESS 4303 PLUS DC POWER SUPPLY

JOBAID

61202335L1-22A

0401

DC SUPPLY

CLEI:SUPPLYSL OCDBC_ _

DC1202335L1PLUSTEMPPOWER

#61202335L1-22A#

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

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

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

C A U T I O N !

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.