Specifications

CES SUPPORT 407-679-9440 Page 8 MAN71© CES 1996
2.0 Installation Instructions
2.1 General Information
Installation of the model 4700VP should be performed by a qualified two-way radio or communications technician.
Ensure that static precautions are observed and that power is not applied during installation.
Shielded audio cable should be used for all audio signal line connections to the transmitter-receiver combination.
Terminate ground shields at the DB9 connector only to prevent hum and noise due to ground loops. The shield at
the other end of the cable must be left unconnected. The best location for the interconnect is as close as possible to
the transmitter-receiver combination, thus allowing the shielded cables and wires to be as short as possible.
2.2 Material and Equipment Required for Installation
The following items are needed in order to install the 4700VP:
♦ # 2 Phillips Screwdriver
♦ Solder and Soldering Iron
♦ Service Monitor or Deviation Meter (optional, for transmitter deviation adjustments)
♦ 1/8” flat blade adjustment tool (or a jeweler’s screwdriver).
♦ Digital Multimeter (recommended)
♦ Radio Transceiver (in addition to the radio (s) being used for the interconnect itself)
2.3 Mechanical Installation
Place the 4700VP on any surface away from sources of extreme heat or cold. The 4700VP should be located close to
a good grounding system (cold water pipe or grounded metal cabinet) if at all possible for maximum lightning
protection.
2.4 Electrical Installation
Electrical installation of the model 4700VP involves connection to the radio (s) by supply cable, and connection to
the telephone line via supplied modular cord. Fig. 2.4.1 shows the rear panel of the 4700VP. Table 2.6.1 shows
functional information for each pin of the DB-9 (Radio Interface Connector) on the rear panel . Table 2.7.1 shows
the internal jumper selections, and Figure 2.5.1 shows the internal component layout and test point locations.
Fig. 2.4.1 4700VP Rear Panel Diagram
RADO INTERFACE
J4
PROGRAM
J2
PHONE
J1