GAI-Tronics 370-400 UHF and VHF Page/Party Radio Couplers - Manual (Page 2)

Pub. 42004-432D
Model 370-400 UHF and 370-420 VHF Page/Party
®
Radio Couplers Page: 2 of 13
f:\standard ioms - current release\42004 instr. manuals\42004-432d.doc
11/11
Features
• 85–264 V ac or 24 V dc power operation
• Hybrid circuitry to eliminate unwanted sidetone
• Individual volume adjustment to and from the radio
• Off-hook detection on party line
• 16-level VOX detection circuitry for monitoring page or party line audio
• 33-ohm termination internal to unit
• Eight selectable programmed radio frequencies
• Selectable high or low radio output power
• Relay output activated by radio received carrier frequency
Radio Frequency Programming
Before unit installation in the field, the operating frequencies of the system must be programmed into the
radio. To do this the radio programming software must be installed on a PC.
Radio Programming Software installation
Place the CD in the computer CD-ROM drive. Select the Start button; then select Run. At the prompt,
type x:\fscommand\setup.exe where x represents the drive letter that is associated with your CD-
ROM drive. A DTXL_PCPS icon should appear on the desktop display after successful installation.
Opening the Station
Remove the four screws from the front panel and remove the front panel from back enclosure.
Connecting the Programming Cable to the Radio
1. Unplug the Page/Party ® Radio Coupler’s 15-pin D-connector from the radio.
2. Connect the DTXP-PAC cable assembly’s 15-pin D-connector into the radio.
3. Connect the RJ11-style plug of the 9/RTC-PAS cable into the mating receptacle on DTXP-PAC
cable.
4. Connect the DB-9 to DB-25 adapter to the other end of the 9/RTC-PAS cable.
5. Connect the DB-9 connector of the cable assembly to the computer serial port.
6. Connect the red and black leads of the 9/RTC-PAS cable to a 12 V dc source (battery or power
supply), observing the polarity (red +, black−).