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22 C1522M-C (2/05)
M DEVICES
M protocol devices (KBD960/KBR960 keyboards, ALM2064 Alarm Interface Units, and REL2064 Relay Interface Units) can be connected to
COM 3 on the CM6800-32X6.
If only one device is to be connected to COM 3, use the instructions for that device in the following sections.
If more than one device is to be connected to COM 3, refer to the
Multiple M Devices
section.
Connect M devices to the CM6800 with straight cables. Two straight cables and one reversed cable are supplied with the CM6800 (save
the reversed cable for connecting a Genex Multiplexer, if applicable).
M Devices Addressing
Each M device connected to the CM6800 must have a unique local address within a range of 1-16. Use the hardware DIP switches to set
the appropriate ALM2064 and REL2064 local addresses. Specify the appropriate KBD960/KBR960 local address through the keyboard
Setup Mode after you complete the system installation (refer to the
System Start-Up
section).
For use with the CM6800, Pelco recommends numbering M devices in a sequential order. In a sample application, with two of each M
device, you might assign local addresses as follows:
M device local addresses: Default Recommended for CM6800
KBD960/KBR960: 1 1, 2
REL2064: 1 3, 4
ALM2064: 1 5, 6
NOTE: To use the CM6800 system access or keyboard priority features, you must address KBD960/KBR960 keyboards within a
range of 1-8.
Figure 15. RJ-45 Cable Types
COMPARED "COLOR RUN"
IS IN SAME DIRECTION
COMPARED "COLOR RUN"
IS IN OPPOSITE DIRECTION
BROWN BROWN
STRAIGHT CABLE
BROWN BROWN
REVERSED CABLE