March Networks CD-13887, Technical Instructions

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CD-13887 Rev. 5.0 - February 1, 2006 Installing an Alarm Option Kit Page 2
Installing an Alarm and Switch Module
To install the alarm and switch module, perform the following procedure:
To install an alarm and switch module
1 Turn off the recorder using the key and wait for the LEDs to turn off.
2 Align the 15-pin connector at the rear of the alarm and switch module with the 15-pin Expansion
Port at the rear of the docking station. The two pre-installed screws will align with the screw holes on
either side of the connector.
3 While holding the module in one hand, tighten the screws.
IMPORTANT:
• Alternate between the two screws to ensure that the module connects evenly to the docking station.
If you fully tighten one screw, then fully tighten the other, the module will not connect evenly.
• Do not overtighten the screws.
4
Slide the two terminal blocks into the slots on the alarm and switch module.
For easier access, we recommend you connect the device wires to the terminal blocks before you slide
the terminal blocks into the alarm and switch module. For more information, see “Connecting
Devices to the Alarm and Switch Module” on page 2.
NOTE
The alarm and switch module LED lights up when power is applied to the recorder.
Figure 1: Installing an Alarm and Switch Module
Connecting Devices to the Alarm and Switch Module
After you install the alarm and switch module, connect alarm or switch devices to the individual terminals
of the terminal blocks. Depending on the orientation of the terminal block, you may want to remove the
terminal block for easier access to the terminals.
Figure 2: Alarm and Switch Module Terminal Diagram
Terminal
Blocks
Screws
LED
A1 CO M CO M A2 A3
CO M CO M A14 A13 A15
A4 A5
A16
COM
NO 1 NC1
A6 A7
C1 NO2
COM A8
NC2 C2
A9
NO3 NC3 C3
COM
A10 A11 CO M
NO 4 NC4 C4
A12 COM CO M
COM CO M
ALA RMS SW ITCHE S