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7.2.6 Contact closure
The MSD has a total of three (3) independently controlled contact closure channels for external control.
Each connector supports three (3) channels. The maximum peak load for each contact is 24 VDC @ 500 mA.
Connect a cable to the 6-pin terminal block, and then insert into the appropriate connector on the MSD's rear
panel.
AWG28 to AWG16 conductor gauge is recommended. The recommended wire strip length is 0.28 in. (7 mm).
7.2.7 Command control
Up to three command buttons (commands A to C) can be executed by connecting the provided 7-pin terminal
block to the command control connector.
Connect these buttons for control commands A to C and LAMPs to the terminal block. When 0V (GND) is
input to the BUTTON terminal, the command will be executed. The LAMP terminal is controlled with DC
5V/100mA. For LEDs, a current-limiting resistor has to be connected.
AWG28 to AWG16 conductor gauge is recommended. The recommended wire strip length is 0.28 in. (7 mm).
MSD-701UHD / 702UHD / 801UHD/ 802UHD User's Guide
[Fig. 7.6] Connecting cable to 6-pin terminal block connector
Up to 0.28" (7mm)
[Fig. 7.7] Connecting cable to 7-pin terminal block connector
Up to 0.28" (7mm)
1
2
3
GND
COMMAND A-BUTTON
COMMAND A-LAMP
COMMAND B-BUTTON
COMMAND B-LAMP
COMMAND C-BUTTON
COMMAND C-LAMP
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