TOA | SV-200MA | manual | TOA SV-200MA User manual

TOA SV-200MA User manual
INSTALLATION MANUAL
(For qualified service technicians only)
SURVEILLANCE BOARD
SV-200MA
1. GENERAL DESCRIPTION
The SV-200MA Surveillance Board consists of an SV-200M board and an SV extension board to be used in combination.
Installing the SV-200MA board inside the VM-2120 or VM-2240 amplifier adds the functions in the following Features
section to the existing VM amplifier's functions.
2. FEATURES
• Permits monitoring of individual speaker line or power amplifier failures for status indication. For the SV-200MA's
surveillance function, refer to the descriptions about the SV-200M in the VM-2120/2240 instruction manual.
• Enables the VM amplifier to bypass external attenuators on individual zone calls.
Individual zone calls on the current VM amplifier do not bypass external attenuators. However, the SV extension board
enables the VM amplifier to bypass external attenuators when an individual zone broadcast is made in a 4-wire
attenuator system.
Either enabling or disabling this function depends on the jumper setting of JP1 on the SV extension board.
For setting, refer to Step 2 in the following Installation section.
• Backup amplifier function
The SV extension board has a relay for BGM/paging operation with backup amplifier function, which is introduced in
Sections 4-5-9 and 4-5-10 of the VM COOK BOOK as a customized relay circuit. So, the additional amplifier normally
works as a BGM/paging amplifier and also acts as a backup amplifier when the internal power amplifier fails.
Connections between the SV-200MA and the VM amplifier differ depending on whether this function is used or not.
For details, refer to Step 6 in the following Installation section.
• Control inputs and outputs corresponding to individual zone selection status
Although current VM amplifiers have expandable zone handling capability, the arrangement of speaker lines is fixed (i.e.
5 zones with 120 W or 240 W). The SV extension board permits flexible designs on speaker lines because it outputs
control signals corresponding to individual zone selection status. The SV extension board also has control inputs to allow
zone selections from external equipment, for Emergency messages, for example.
[Additional pin functions of the Surveillance I/O connector]
Pin No.
Signal Name
15
PA FAULT LINK
16
ZONE 5
17
ZONE 4
18
ZONE 3
19
ZONE 2
20
ZONE 1
21
RY_INTATT
22
RY_EXTAMP
Logic/Signal *3
Open
INPUT
Short
Low (0 V)
OUTPUT
Short
INPUT
High (24 V)
OUTPUT
Low (0 V)
Short
INPUT
High (24 V)
OUTPUT
Low (0 V)
INPUT
Short
High (24 V)
OUTPUT
Low (0 V)
Short
INPUT
High (24 V)
OUTPUT
Low (0 V)
Short
INPUT
High (24 V)
OUTPUT
Low (0 V)
Short
INPUT
High (24 V)
OUTPUT
Low (0 V)
Short
INPUT
High (24 V)
OUTPUT
Low (0 V)
IN/OUT
Function/Status
No amplifier in the system has failed.
Another amplifier in the system has failed.
The internal Amplifier has failed.*1
Selection of Zone 5 is canceled by external equipment.*2
Zone 5 is activated.
Zone 5 is not activated.
Selection of Zone 4 is canceled by external equipment.*2
Zone 4 is activated.
Zone 4 is not activated.
Selection of Zone 3 is canceled by external equipment.*2
Zone 3 is activated.
Zone 3 is not activated.
Selection of Zone 2 is canceled by external equipment.*2
Zone 2 is activated.
Zone 2 is not activated.
Selection of Zone 1 is canceled by external equipment.*2
Zone 1 is activated.
Zone 1 is not activated.
Internal Zone Attenuator Bypass is canceled by external equipment.*2
The internal Zone Attenuators are bypassed.
The internal Zone Attenuators are not bypassed.
Activated external SP Input is canceled by external equipment.*2
External SP Input is active.
External SP Input is not active.
*1 The VM amplifier whose internal power amplifier has first failed outputs the signal so that the BGM/paging amplifier
changes its current operation to back up the failed amplifier.
*2 The external equipment can access this pin only when the corresponding OUTPUT status is High (24 V).
*3 Input: No-voltage make contact input, open voltage: 24 V DC, short-circuit current: under 60 mA
Output: Open collector output, withstand voltage: 24 V DC (used with VM 24 V DC output), control current: under 20 mA
3. INSTALLATION
Step 1. Set the DIP switch on the SV-200M board referring to the installation manual for the VM-2120 and
VM-2240.
Step 2. JP1 on the SV extension board is a 3-pin jumper
header and its short circuit socket is normally set to A
position. If you need to bypass the external attenuator
not only on all-zone broadcast but also individual
zone broadcast, set the socket to B position.
SV-200M board
SV extension board
JP1
A
B
Note
External attenuator bypass function with individual
zone broadcast can be used only with 4-wire
attenuators.
This function basically cannot be used with
BGM/Paging function.
A position
(Factory-preset)
Step 3. Remove 4 screws on the amplifier rear panel and a
total of 6 screws on the sides to remove the cover.
B
A
A
B
Short circuit socket
B position
Side: M4 x 8 machine screw ..... 3 pieces each
Rear: M3 x 6 machine screw
and M3 plain washer ..... 4 pieces
Step 4. Detach the surveillance I/O blank panel on the
amplifier rear panel by removing 2 fixing snap rivets.
Surveillance I/O blank panel
Snap rivet
Step 5. Make connections of the supplied flat cables.
5-1 Remove the flat cable connected between the VM
CPU board's CN7 and the VM relay board's CN1001
of the VM amplifier.
5 -1
CN7
Remove
CN1001
VM CPU board
CN6
5-2 Connect the supplied 2 flat cables to CN7 and to
CN1001, respectively.
[Orientation of the flat cable]
VM relay board
Rear panel
Flat cable
5 -2
Contact face
For VM relay board
Contact
On-board connector
Contact face
For VM CPU board
Note
Pay attention to the orientation of the cable so that it's contact face touches the connector's contacts.
Step 6. Connect the SV-200MA board to the VM amplifier's boards with the connection cables.
[BGM/PAGE operation with backup amplifier function necessary]
6-1. Plug out the jumper connector from the VM relay board connector CN1003.
6-2. Plug out CN5 connector on the SV extension board, and plug it into CN1003 on the VM relay board.
6-3. Connect CN3 on the SV-200M board to CN5 on the SV extension board.
6-4. Connect CN1 on the SV-200M board to CN6 on the VM CPU board.
SV-200M board
6 -4
CN6 connection cable
CN1003 connection cable
Connection cable
CN1 CN3
CN5
6 -2
6 -3
CN1003
CN6
VM CPU board
VM relay board
CN6
CN8
Jumper connector
Rear panel
6 -1
SV extension board
[BGM/PAGE operation with backup amplifier function not necessary]
6-1. Plug out the jumper connector from the VM relay board connector CN1003.
6-2. Connect the 2 cables attached to the SV-200M board to the connectors in the VM amplifier's boards
as shown below.
CN6 connection cable
6 -2
CN1003 connection cable
CN1003
CN6
CN1 CN3
VM relay board
CN8
VM CPU board
SV-200M board
SV extension board
Jumper connector
6 -1
Rear panel
Step 7. Using the removed 2 hexagonal sleeves, mount the
SV-200MA assembly in the amplifier.
SV-200M board
SV extension board
Hexagonal sleeve
Step 8. Connect the flat cables to the SV extension board.
Be sure to correctly connect the flat cables between the following connectors:
VM CPU board's CN 7 – SV extension board's CN3
VM relay board's CN1001 – SV extension board's CN4
Note
Pay attention to the orientation of each cable so that
it's contact face touches the connector's contacts.
SV-200M
board
From VM CPU board's CN 7
SV extension
board
From VM relay board's CN1001
CN3
CN4
Rear panel
IMPORTANT
Ensure that all cables are correctly connected. Misconnection of the cables may cause the SV
extension board to fail.
Step 9. Check the DIP switch on the SV-200M board again for correct setting. (Refer to the installation
manual for the VM-2120 and VM-2240.)
Step 10. Using the 4 rear panel screws and 6 side panel screws removed in Step 3, replace the amplifier
cover.
133-21-505-00
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