Appendix B: CPSW Reference Material
122
Monitor
This key will send the correct command (current or tone) to disable the private line or
channel guard feature of the radio allowing the received audio to be heard at the console.
The indicator LED will remain on until the channel's transmitter is keyed.
Phone On/Off Hook
This key will activate the auxiliary output line of the designated channel. It is intended to
be used as an “off hook” signal to answer an incoming phone line when the optional
telephone coupler is installed. Each channel has one auxiliary output line.
Phone Hook Flash
The phone Hook Flash key will cause the On/Off Hook line to be deactivated for 500 ms
thereby putting the phone on “hold”. Hit the key again to enable the phone conversation.
Extended Channel Functions
These are additional channel functions that can be assigned to Standard Tone and/or DC
controlled channels.
CTCSS Select
This command activates CTCSS (constant tone coded squelch signal) over-ride. This key
will cause the PL (private line) feature to be disabled thereby allowing all radio channel
activity to be monitored by the console operator. Refer to
on page 110 for the actual tone or DC current transmitted.
Repeat On/Off
This key will toggle the radio repeater on/off function on the appropriate channel. Refer to
DC and Tone Remote Function Definitions
on page 110 for the actual tone or DC current
transmitted.
Coded/Clear
This key will toggle the coded/clear function on the appropriate channel. Refer to
Tone Remote Function Definitions
on page 110 for the actual tone or DC current
transmitted.
Second Receiver Unmute/Mute
This key will toggle the radio Mute on/off function on the appropriate Tone controlled
channel. Refer to
DC and Tone Remote Function Definitions
on page 110 for the actual
tone transmitted.