Installation
24
68P81096E37-N
06/28/05
Table 1. Configuring Input GPI_14 Function
Table 2. Configuring Output GPO_14 Function
The shaded areas indicate default manufacturing settings.
Note 1:
This is an active low; that is, no current to the Opto Input.
Note 2:
This configuration, with P6 out (PTT when current to the Opto
Input) represents the E Signal of 4 wire E&M Trunk Type I Phone
Signalling. The opposite direction of the E&M is covered in
Note 3.
In this configuration the second remaining unused input type
must be jumpered to the SPI Buffer. The Buffer Input should
never be left floating; otherwise the IRQ Generator will not
function properly (i.e., use either P2-1&2 or P9-7&8).
Function on
GPI_14
Input Type
System
Connector
Input Pins
Auxiliary I/O Board Jumpers
P2
P9
P6
(See Note 1)
Fast External PTT*
via Optocoupler (E/M sub).
(See Note 2)
A29 Opto +
A26 Opto –
3 - 4, 1 - 2
In
via Transistor
B26
9 - 10, 7 - 8
In
Fast External PTT
via Optocoupler (E/M sub)
A29 Opto +
A26 Opto –
3 - 4, 1 - 2
Out
via Transistor
B26
9 - 10, 7 - 8
Out
Function on GPO_14
Output Type
System Connector (J5)
Output Pins
Auxiliary
I/O Board
Jumper P5
AC Fail
via Relay Closure
B29, A30
2 - 4
SPI Latch for GPO_14 (software defined)
via Relay Closure
B29, A30
1 - 2
Notes
CAUTION
!
