Daisy-Chaining Headset Modules - Firecom 210 Installation & Operation Manual

Headset Module Installation
• With the CA cable routed from the intercom, cut the cable to length at the headset module and slide
the bend relief grommet over the end of the CA cable as shown in the figure above.
• Attach a RJ-12 connector to the end of the cable –see Appendix B "RJ-12 Connector Assembly. "
Always make sure the printed side of the cable is facing the release tab on the RJ-12
modular plug.
• Open the headset module assembly by removing the screws labeled "A" in the figure on page 6.
Install the plug and bend relief grommet as shown in the figure above. If the CA cable is going
from the intercom to the headset module it MUST be inserted on the same side of the
HM-10 as the "Firecom" label. Replace the headset module cover and mount the assembly with
the hardware provided.

Daisy-Chaining Headset Modules

Under certain circumstances daisy-chaining of headset modules may be used to increase the number of headset
positions available. However the following requirements must be met:
• Headset modules in a daisy-chain must be connected in a specific manner as illustrated
in the figure above. The CA cable from the intercom should always be plugged into the
headset module on the "Firecom" label side. You will need to remove the plastic tab which
covers the access hole to the auxiliary jack to add the CA cable to the next headset module.
• Do not mix headset types in a daisy-chain (intercom-only vs. radio transmit).
• A maximum of two intercom-only headsets may be used in a daisy-chain.
• A maximum of one radio-transmit headset may be used in a daisy-chain.
SYSTEM WIRING
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