5
HARDWARE INSTALLATION
Be certain to follow standard anti-static procedures when handling any of Midian’s products.
Getting Started:
The VTE-1 has a number of adjustment potentiometers and configuration jumpers. These have been adjusted
and configured at the factory for a typical installation. However, audio levels should be verified and adjusted (if
necessary) at the time of installation. Also, the configuration jumpers should be inspected prior to installation to
verify that they are in the right configuration. Jumper descriptions appear in the jumper settings section with a
quick reference table.
Line Interface
The line interface connector CON7 is a 10-pin RJ-45 style connector on the left side of the back panel.
2-Wire Operation:
For a 2-wire installation, simply connect pins 5 and 6 (red and green) to the dedicated line. A
standard 4 conductor phone cable will function properly in connector CON7. See table 3.1.
Table 3.1
Pin Color
2-Wire
CON7-4 Black Not
Used
CON7-5 Red Line
1
CON7-6 Green Line
1
CON7-7 Yellow Not
Used
Radio Interface:
CON6 is located in the middle of the back panel and is used to connect the VTE-1 to the satellite or auxiliary
receiver. The following are the connection points:
CON6:
CON6-2 (Orange): COR:
Connect this lead to the busy detect of the radio. This input is used to control whether
audio should be passed down the line to the voting comparator or generate the pilot tone.
CON6-6 (Red): Battery (13-18 VDC):
Connect this lead to 13-18 VDC from the base station/repeater.
CON6-7 (Black): Ground:
Connect this lead to the base station’s or repeater’s ground.
CON6-8 (White): RX Input:
Connect to the receive audio in the satellite or auxiliary receiver after the sub-audible
hi-pass filter and at some point that gives flat audio to the VTE-1. Speaker audio is fine if it is single ended, but
make certain the volume control cannot be turned down accidentally.
Diagram 3.1
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