Channel Master CM-5020 Specifications download pdf (Page 41)

System

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7.1.13 Multiple handsets in the system

If multiple handsets are connected in the system the following priority is given (to PTT –

microphone control) if multiple handsets are lifted:

• The default handset is always given priority if lifted.

• Any optional handset lifted first takes priority over another optional handset.

A warning “OC” is written in the display near any handset (VHF unit or CU) that has lower

priority, as soon the prioritized handset is lifted.

If an optional handset is not given priority (“OC” written

in display) it will be possible to use only the following

buttons on the CU:

7.1.14 Optional handset CU VHF operation while main unit is in

menu or text entry mode

If the main VHF unit is operated in menu or text entry mode, there will be certain buttons on

the VHF main unit that do not respond to their primary functions. Seen from a CU perspec-

tive all functionality is maintained if “OC” is not shown in the telephone display.

7.1.15 Multiple handset hooked-off

Certain states (e.g. PSTN calls and scrambled calls) can be terminated with a hook-on of the

handset. The following approach is taken for installations with CU5000:

• The terminating action is only taking place if the handset that was hooked on, was

the last active handset to be hooked on in the system.

• It does not matter if the hooked on handset was the handset that had priority in the

system.

7.2 Alarm Panel AP4365

The Alarm Panel AP4365 will, when connected to the VHF, indicate this connection by

illuminating the text “VHF” in the Alarm Panel display

7.2.1 Distress initiation

Only undesignated distress messages may be initiated from the Alarm Panel.

A distress message is initiated from the Alarm Panel by lifting the cover over the VHF

DISTRESS button and pressing this for 5 seconds. Each second lapsed is audibly indicated.

After the lapse of the 5 seconds a constant sound is heard indicating that the distress

message has been transmitted from the VHF. The distress button may be released.

The VHF is now in distress mode and the distress traffic and procedures should be contin-

ued from the VHF front panel, if possible, in the same way as described for handling distress

mode from main VHF.

The Alarm Panel audible alarm on incoming distress or urgency messages may be muted by

pressing the MUTE- button.

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Channel Master CM-5020 Specifications Page 41