Installation and programming manual
14
Internal components
Chapter 5
Internal components
5.1
Terminal board
Figure 4 - Terminal board
Nr.
Identifier
Description
Note
1
+PWR
Positive
2
-PWR
Negative
3
+AUX
Ancillary power
12Vdc
400mA
4
Ground:
reference for signals on terminals;
Negative power
5
IO1
Input/Output terminals
13.8Vdc
150mA
current
draw for
each
terminal
6
IO2
7
IO3
8
IO4
9
IO5
10
OPEN
Tamper protection Refers to the tamper-
microswitch contact (table on page 12,
‘[G]’).
13.8Vdc
100mA
11
12
To be connected to the mains earth.
13
To be connected to devices which access
the telephone line (e.g. telephones,
alarms, control panels, etc.).
14
15
PSTN
Land line (PSTN) connection
16
