Datasheet

DATASHEET
DS_DIM3R3_09102010
4
DIM3R3 INTERNAL BLOCK DIAGRAM
PIN FUNCTIONS
PIN NO.
PIN NAME
DESCRIPTION
1
-48_AF
-48V_A Feed (Externally Fused)
2
-48_BF
-48V_B Feed (Externally Fused)
3
VRTN_AF
VRTN_AF Feed (Externally Fused)
4
VRTN_BF
VRTN_BF Feed (Externally Fused)
5
ENABLE_AF
ENABLE_AF Feed (Externally Fused) (Short Pin, connected to VRTN_AF on the back plane)
6
ENABLE_BF
ENABLE_BF Feed (Externally Fused) (Short Pin, connected to VRTN_BF on the back plane)
7
SHELF_GND
Shelf / Chassis / Safety Ground
8
72V_CAP
Holdup/Bulk capacitor output voltage (Negative Connection to -48V_OUT)
9
-48V_OUT
OR’d and Inrush Protected –48V Output Bus
10
MGMT_PWR
3.3V Isolated Management Power Output (reference to LOGIC_GND)
11
5V BLUE_LED_PWR
This pin is optional for 5V Isolated Blue LED Power output (reference to LOGIC_GND)
12
LOGIC_GND
Logic / Secondary / Isolated Ground
13
-48V_ALARM
Opto-isolated -48V A/B Feed Loss or Open Fuse Alarm (reference to LOGIC_GND)
14
VRTN_OUT
OR’d and Inrush Protected VRTN Output Bus