OnAir 2000M2 Digital Mixing Console
Date printed: 12.11.03 SW V 4.0 HW Modules 15-7
15.7 Telephone Hybrid Module 1.942.140.xx (Option)
The telephone hybrid module is used to control two telephone hybrids
from the console.
The module address must always be set to the same value by means of DIP
switches; refer to chapter 16.3.
Pin Assignment: TEL A/B (D-type, 15pin, male):
Pin Signal Pin Signal Pin Signal
1 n.c. 6 Hold IN 11 Spare OUT
2 n.c. 7 Studio OUT 12 COMMON
3 Spare IN 8 Tel OUT 13 Tel IN
4 COMMON 9 n.c. 14 Studio IN
5 GND 10 n.c. 15 Hold OUT
The inputs are opto-coupler inputs with internal 820 Ω current limiting
resistors.
All outputs are open-collector outputs. Small loads, such as LEDs, opto-
couplers, or relays can be driven directly. Maximum current per open-
collector output must not exceed 100 mA.
1
2
3
9
10
11
4
5
6
7
8
12
13
14
15
TEL. HYBRID
TEL A
TEL B
max. 100 mA
7, 8, 11, 15 OUT
5 GND
820 Ω
4, 12 COMMON
3, 6, 13, 14 IN
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