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2. Set switches (SW4, SW5, SW6, and SW7) on the
board to meet the alarm input requirements.
ON:
Normally Closed (N.C)
OFF:
Normally Open (N.O)
The factory default settings are OFF.
SW4
5 6
3 4
1 2
3. If this board is used for Alarm Output, set switches
(SW3) on the board as follows.
ON:
Output mode
OFF:
Input mode
The factory default settings are OFF.
SW3
3 4
1 2
OFF
7 8
ON
OFF
ON
Installation
The following installation should be made by qualified
service personnel or system installers.
Installing Additional Extension
Boards
1. Remove the screws from the rear panel(s) of the
WJ-SX850 Matrix Switcher Card Cage.
2. Remove the rear panel(s).
3. Remove the front panel of the cage by removing the
two screws on the panel shown below.
-3-
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