Tally Port

The switcher supports 34 fixed tallies on a female DB37 connector.



Table 1. Tally Rating
Specification Value
Input Voltage 24VAC(rms)/40VDC
Maximum Current 120mA
Impedance <15 ohm
Note: The tally pin must be connected to the proper common to complete the circuit. For example, tally 6 on pin 7 must be connected to the common on pin 31.
Table 2. Tally Pinouts
Pin Tally #
1 Common (pins 2-6, 20-25)
2 1
3 2
4 3
5 4
6 5
7 6
8 7
9 8
10 9
11 10
12 11
13 12
14 13
15 14
16 15
17 16
18 17
19 Common (pins 13-18, 32-37)
20 18
21 19
22 20
23 21
24 22
25 23
26 24
27 25
28 26
29 27
30 28
31 Common (pins 7-12, 26-30)
32 29
33 30
34 31
35 32
36 33
37 34