Siemens ST950 Plus+ User Manual page 41

ST950 Plus+ User Manual
Location Pin
8
9
10
Bottom 11
12
13
14
15
16
17
18
19
20
Table 5 : Double Stacked 10W IDC – Top: Cabinet Signals Bottom: Aux RS232
Functions:
Signals on/off switch (3,4) – This input allows an external switch to be used to control the signals
on/off state. If either the internal (on the manual panel) or external switches are in the 'on' position
the signals are requested on. (switch closed = signals on)
Cabinet Alarm LED Drive (5,6) – This output allows an external LED indicator to be installed to
indicate the cabinet alarm state. This output is current limited to 33mA under short circuit
conditions.
Door Switch (7,8) – This input allows an external switch to be used to connect a cabinet door
switch. (switch closed = door closed) If either this input or the standard manual panel indicate
door closed the controller door state will be closed.
Reset fault log button (9,10) – This input allows an external push button to be used to reset major
faults in the fault log in the same manner as RFL=1 would do from the handset.
Bottom connector – Serial port used to connect an optional GPS unit (used to maintain the clock).
Location Pin
Top 1
2
3
4
5
6
7
ST950 Plus+ User Manual
Function
Door switch return (0V)
Reset fault log button input signal
Reset fault log button return (0V)
+5V Fused (500mA)
RS232 DSR (Input)
RS232 RxD (Input)
RS232 RTS (Output)
RS232 TxD (Output)
RS232 CTS (Input)
RS232 DTR (Output)
Not Used
0V
Not Used
Function
Modem +5V DC fused output from MDU/LPU (not battery backed)
Connected to pin 1 above
Modem 0V DC output (+5V return)
Connected to pin 3 above
Isolated Shutdown O/P +
Isolated Shutdown O/P -
External supply monitor signal (digital)
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