19
Operation
Table 16 Function Channel selection
Relay activation is governed by the setting in the service module and must be determined in agreement
with the manufacturer of the music system. Possible settings are:
1. "CHANNEL CONTROL EXTERNAL: BCD"
2. "CHANNEL CONTROL EXTERNAL: DECIMAL"
3. "CHANNEL CONTROL EXTERNAL: PULSE"
External channels are selected by means of pulses at relay 1 or relay 2. Pulse duration in this case is 100
ms. If channel 1 is selected, a pulse sequence (pulse / pause duration 100 ms each) matching the number
of external channels set will be transmitted for synchronisation.
channel selected
relay 4
relay 3
relay 2
relay 1
Channel 1
open
open
open
open
Channel 2
open
open
open
closed
Channel 3
open
open
closed
open
Channel 4
open
open
closed
closed
Channel 5
open
closed
open
open
Channel 6
open
closed
open
closed
Channel 7
open
closed
closed
open
Channel 8
open
closed
closed
closed
Channel 9
closed
open
open
open
Channel 10
closed
open
open
closed
Channel 11
closed
open
closed
open
Channel 12
closed
open
closed
closed
Channel 13
closed
closed
open
open
Channel 14
closed
closed
open
closed
Channel 15
closed
closed
closed
open
Channel 16
closed
closed
closed
closed
channel selected
relay 4
relay 3
relay 2
relay 1
Channel 1
open
open
open
closed
Channel 2
open
open
closed
open
Channel 3
open
closed
open
open
Channel 4
closed
open
open
open
channel selected
relay 4
relay 3
relay 2
relay 1
Channel 1
open
open
pulse sequence open
Channel UP
open
open
open
one pulse
Channel DOWN
open
open
one pulse
open
