TCP3500-1024G
5
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© 2020 Bel Power Solutions & Protection
BCM.00495_D
SIGNAL OUTPUT CONNECTOR
–
PINOUT
SIGNAL NAME
PIN #
TYPE
SIGNAL
REFERENCE
LOW LEVEL
HIGH LEVEL
V MAX
I MAX
RS485-1A
1
RS485 Half Duplex, Differential pair 1
RS485-1B
+/-60 mA
@ 60
Ω
, 50 pF
-7 to 12 VDC
8 mA
RS485-2A
2
RS485 Half Duplex, Differential pair 2
RS485-2B
+/-60 mA
@ 60
Ω
, 50 pF
-7 to 12 VDC
8 mA
ADDR-INIT OUT
3
The unit’s address change accepted
SRTN
<0.4 VDC
Pull up
7 VDC
20 mA
IN OK
4
AC Power Fail Warning - open collector,
external pull-up needed to max. 7 V
SRTN
<0.4 VDC
Pull up
7 VDC
20 mA
OUT OK
5
Output Voltage Fault - open collector, external
pull-up needed to max. 7 V
SRTN
<0.4 VDC
Pull up
7 VDC
20 mA
INHIBIT
6
Output Inhibit -
Open circuit or “High” to SRTN
shuts OFF Vout
SRTN
<0.4 VDC
>2.5 VDC
3.6 VDC
0.2 mA
ENABLE
7
Power Supply Enable pin
–
for unit enable
short this pin to SRTN
SRTN
<0.4 VDC
>2.5 VDC
3.6 VDC
0.2 mA
SRTN
1
8
Internal Ground (Signal Return)
-
-
-
RS485-1B
9
RS485 Half Duplex, Differential pair 1
RS485-1B
+/-60 mA
@ 60
Ω
, 50 pF
-7 to 12 VDC
8 mA
RS485-2B
10
RS485 Half Duplex, Differential pair 2
RS485-2B
+/-60 mA
@ 60
Ω
, 50 pF
-7 to 12 VDC
8 mA
Not Connected
11
-
-
-
-
OT/FAIL
12
Over Temperature /PSU Fail, open collector,
external pull-up needed to max.7 VDC
SRTN
<0.4 VDC
Pull up
7 VDC
20 mA
PS-PRESENT OUT
13
Power Supply Seated
–
last unit in string will
pull down this signal (external short to SRTN)
and informs Master Controller that all units in
string are seated and connected
SRTN
<0.4 VDC
>2.5 VDC
3.6 VDC
0.2 mA
ACSH
14
Active Current Share
SRTN
0.2 VDC
5.0 VDC
7 VDC
0.7 mA
Margin
15
Optional
–
analog signal for Output Voltage
adjustment - Not Connected
SRTN
-
-
1
SRTN and Vout- are connected together inside the power supply.
Note:
Maximal mounting torque for the screw locks of the signal connector is 0.3 Nm (please see the Fig. 1)
Connector type: Würth Elektronik, 61801529321
Mating part:
Würth Elektronik, 61801529221
