VXR-7000U FM
REPEATER OPERATING MANUAL
3
Press this button again to clear the message on the ANI display, and turn off the LCD backlight.
Rear Panel
1: EXT SP
Jack
This 3.5-mm, 2-pin jack provides variable audio output for an external speaker. The audio output
impedance at this jack is 4ohms ~ 16ohms and level varies according to the setting of the front
panel’s
VOL
control.
2: TX
Antenna Jack
This N-type coaxial jack provides the transmitting output signal for connection to the transmitting
antenna or TX jack on the duplexer, if used. The output impedance requirement is 50 W.
3: RX
Antenna Jack
This N-type coaxial jack accepts the receiver input signal from the receiving antenna or RX jack on
the duplexer, if used. The input impedance requirement is 50 W.
4: ACC
Jack
This DB-25 connector provides a data interface between the microprocessor in the VXR-7000 and
peripheral devices (such as the VX-TRUNK Unit).
5: LINE
Jack
This 8-pin modular jack is used for remote control. It provides TX and RX audio, TX keying, and
squelch status output. The TX and RX audio impedance is 600 W.
6: GND
Terminal
For best performance and safety, the GND terminal should be connected to a good earth ground using
a short, heavy, braided cable.
7:
AC Jack
This receptacle accepts the AC power cord, which should be connected to the AC mains supply or
wall outlet. The AC line voltage must match that for which the repeater is wired.
8: BATT
Terminal
These terminal posts accept 12~ 15 VDC for operating the repeater from a battery or other DC
source. When operating from AC mains, a small trickle current is present at these terminals to
maintain battery charge. A battery rated for 12 volts, 55 Ah (minimum) is recommended for short-
term emergency/backup operation.
ACC Connector Port
The VXR-7000 repeater is provided with a 25-pin DB-25F female connector for interconnections to
accessories. Use a DB-25M 25-pin male connector to connect accessories to the repeater. The pins on
the accessory connector are explained in detail as follows:
Pin 1:
GND
Chassis ground for all logic levels and power supply return.
Pin 2:
+13.8 V
[Power Supply]
This pin provides 13.8 Volts, 1.0 A, regulated DC from the repeater supply. Use a 1 A fuse in the
external device’s DC line to prevent damage to the repeater.
Pin 3:
TX AF IN
[Analog Transmitter Input] (Voice Band: 300 ~ 3,000 Hz)
Input impedance is approx. 600 W. This audio is injected before the splatter filter stage, so excess
signal input levels are clipped.
Use shielded cable to connect to this pin, and connect the shield to
GND
.
Pin 4:
TONE IN
[Transmitter Input] (Sub-audible Band: 6 ~ 250 Hz)
The input is high impedance (approx. 22 ?W). Injecting too high a voltage here causes over-deviation
of CTCSS or DCS, degrading performance. Use shielded cable to connect to this pin, connecting the
shield to
GND
.
