Toa SX-2000 Series Manual - Manual (Page 114)

10-9
Chapter 10: OPERATION
2. MAKING GENERAL URGENCY ALL-CALLS
If normal broadcasts cannot be made due to system failure or some trouble, only an all-call is possible in the
following procedure.
This is a broadcast made by bypassing the CPU*
1 that normally operates in the SX-2000 system. (For details,
see the separate Installation Manual, "Installation" and "Connections.")
If the SX-2000 system receives a 24 V emergency cutoff signal*
2 , the general urgency all-call is disabled
because the emergency broadcast system takes precedence over the SX-2000 system.
* 1 CPU is a central processing unit, which is built in the SX-2000SM, SX-2000AI, SX-2100AI, SX-2000AO, and
SX-2100AO.
* 2 In the SX-2000 system, a 24 V emergency cutoff input terminal that allows control of an emergency audio
input is provided on the SX-2000AO's rear panel. When the SX-2000 system is combined with another
emergency broadcast system, a 24 V DC is normally kept being supplied to this emergency cutoff input
terminal and is cut off (24 V emergency cutoff function) in emergency situations. This interrupts the general-
purpose broadcast from the SX-2000, allowing the emergency broadcast system to override it. (For details,
see the separate Installation Manual, "Installation.")
General urgency all-calls can be made following the procedure below independently of settings performed
using the SX-2000 Setting Software.
2.1. Making General Urgency All-Calls from the RM-200SA
Open the cover of the General Urgency All-Call key, then while holding down the key, wait about 4 seconds
until the Failure indicator lights red and begin to make microphone announcements.
Cover
General Urgency All-Call key
Lights red
Failure Indicator
1 2 3 4 5 6
Note
The RM-200SA's DIP switch 5 (factory default: ON)
must be preset to ON to enable the CPU OFF function
(general urgency all-call).