Mounting An Optional Sv-200M Surveillance Board - Toa VM-2120 Instructions D'installation

16. MOUNTING AN OPTIONAL SV-200M SURVEILLANCE BOARD

Caution: Leave the following work to a qualified service technician.
Be sure to unplug the AC power cord before the work.
Do not handle unless your body is static-free because some of the assembled components are
sensitive to static electricity.
Step 1. Set the DIP switch on the SV-200M Board as shown in the figure.
SW 1 SW 2
ON ON
1 2 1 2
Communication with VM amplifiers
Be sure to set to ON.
Speaker line surveillance activation time
Speaker line surveillance activation time
SW1-1 SW1-2 SW2-1
OFF OFF OFF
ON OFF OFF
OFF ON OFF
ON ON OFF
OFF OFF ON
ON OFF ON
OFF ON ON
ON ON ON
Communications with VM (VM-2120 or VM-2240) amplifier
SW2-2
Disabled (communications impossible)
OFF
Enabled (when SV-200M Board is
ON
installed in VM amplifier)
Step 2. Remove 4 screws on the amplifier rear panel and a total of 6 screws on the sides to remove the
cover.
Rear: M3 x 6 machine screw and M3 plain washer ..... 4 pieces
Setting contents
Automatic activation
disabled
10 minutes intervals
20 minutes intervals
30 minutes intervals
30 minutes intervals
40 minutes intervals
50 minutes intervals
60 minutes intervals
Setting contents
This setting executes failure detection by means of
the "speaker line surveillance activation" signal from
the external control input (SURVEILLANCE I/O 25-
pin D-sub connector).
Speaker lines are automatically monitored at set
time intervals.
Side: M4 x 8 machine screw ..... 3 pieces each
SW 1 SW 2
SV-200M Board
7