Pub. 42004-432E
Model 370-400 UHF and 370-420 VHF Page/Party® Radio Couplers
Page 8 of 10
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-432E.docx
05/18
Operation
The Page/Party
®
station operator controls the coupler’s connection to the page or party line by the off-
hook and page conditions.
When all stations are on-hook, the Page/Party
®
Radio Coupler is connected to the page line.
When any station is off-hook on the designated party line, the Page/Party
®
Radio Coupler is
connected to that party line.
When the Page/Party
®
station operator lifts the handset and presses the handset pressbar, the
Page/Party
®
Radio Coupler is connected to the page line.
Calling a Radio Operator from the Page/Party
®
System
For paging and subsequent party line conversation:
1.
Lift the handset and select the dedicated party line using the five-position rotary selector switch.
2.
Press the handset pressbar to connect to the page line in the radio coupler and page the desired
individual.
The page is heard over the Page/Party
®
system and the radio frequency. After the page:
3.
Release the pressbar to connect the station to the party line in the radio coupler and wait for a
response.
The radio operator then responds by keying the radio and talking.
The resulting communication is half duplex, meaning the person currently talking has control of the
conversation. The other operator must wait until the first person has finished talking. After the
conversation is complete, the Page/Party
®
operator should place the handset back on-hook.
Calling a Page/Party
®
Operator from a Radio
For paging and subsequent party line conversation:
1.
Turn on the radio and activate the push-to-talk (PTT) button.
2.
Page the desired individual. The Page/Party
®
station operator lifts the handset, selects the dedicated
party line using the five-position rotary selector switch and responds to the radio operator.
The resulting communication is half duplex, meaning the person currently talking has control of the
conversation. The other operator must wait until the first person has finished talking. After the
conversation is complete, the Page/Party
®
operator should place the handset back on-hook.
Specifications
AC/DC Input
AC Power Supply
Input voltage ............................................................................................ 120/230 V ac (nominal), 50/60 Hz
Current draw @ nominal 120 V ac .................................................................................................... 270 mA
Current draw @ nominal 230 V ac .................................................................................................... 150 mA
DC Power Supply
Input voltage ....................................................................................................................................... 24 V dc
Current draw @ nominal 24 V dc ............................................................................................................. 1 A
