ADTRAN 4303 PLUS User Manual
Total access 4303 plus dc power supply, Dc supply, Dc supply plus

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_ _
DC SUPPLY
PLUS
1202335L1
POWER
TEMP
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
JOB
A
ID
#61202335L1-22A#