C2-6104A O
PERATION
M
ANUAL
36
Tally / GPIO connections are connected via a D25 socket:
13
12
11
10
9
8
7
6
5
4
3
2
1
5v
TX+
RX+
GND
TI8
TI7
TI6
TI5
TI4
TI3
TI2
TI1
GND
TX-
RX-
GND
TO8
TO7
TO6
TO5
TO4
TO3
TO2
TO1
GND
25
24
23
22
21
20
19
18
17
16
15
14
Note that the TX+/- and RX+/- pins are duplicates of the RJ45 connector and
support RS-422/485, as per the TSL specification.
The RJ-45 connection is as shown below (as viewed from the rear):
Pin
Function
Direction
1
0v
GND
2
0v
GND
3
TX-
OUT
4
RX+
IN
5
RX-
IN
6
TX+
OUT
7
No connection
In all cases, the Tally output bits match the Tally input bits – e.g. when TI3 is pulled
low externally, the TO3 pulls low to match it. This allows daisy-chaining of units
together.
This sets up the mode that the Tally module runs in – and defines one of three
different ways that it can operate:
Tally
mode
Result
Disabled Tally I/O is disabled.
Normal
Sets border colour of the window
according to which Tally input bits
are active (pulled low).
Presets
Activates a preset according to
which Tally input bit is active
(pulled low).
Adjust tally
Tally mode [Normal]