micro
HAM ©
2016
All rights reserved
PORT B, DB25F
Pin #
Label
Description
1
EXT PWR IN
External power input for PORT B, max. +24V*
2
NC
Not connected
3
NC
Not connected
4
COM
Common output. Output depends on jumpers configuration.
5
NC
Not connected
6
PORT B7-COM
PORT B7 common**
7
PORT B8-COM
PORT B8 common**
8
PORT B9-COM
PORT B9 common**
9
PORT B10-COM
PORT B10 common**
10
PORT B7-NO
PORT B7 output, Normally Open
11
PORT B8-NO
PORT B8 output, Normally Open
12
PORT B9-NO
PORT B9 output, Normally Open
13
PORT B10-NO
PORT B10 output, Normally Open
14
NC
Not connected
15
NC
Not connected
16
NC
Not connected
17
NC
Not connected
18
EXT PWR GND
Power ground. Connect return of external PORT B common power to this pin.*
19
CONTROL GND
Power ground. Connect control cable shield to this pin.
20
PORT B1
PORT B1 output
21
PORT B2
PORT B2 output
22
PORT B3
PORT B3 output
23
PORT B4
PORT B4 output
24
PORT B5
PORT B5 output
25
PORT B6
PORT B6 output
SHELL
GND
Connected to the system ground and case.
* When using an external power supply, connect the positive terminal to pin 1, the negative terminal to pin 18
and move the Port B jumpers to EXT/SRC. Never 24V and do not reverse polarity!
** If PORTs 7-10 need to share a common with PORTs 1-6, connect this pin to pin 4.
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