2-14 888-2595-001 12/20/11
WARNING: Disconnect primary power prior to servicing.
Section 2 Installation
ZX Series
TX OFF
COMMAND
Ground pin to turn transmitter
off. (momentary)
5 Input
POWER RAISE
COMMAND
Ground pin to raise output
power. (momentary)
6 Input
POWER LOWER
COMMAND
Ground pin to lower output
power. (momentary)
7 Input
RF MUTE
COMMAND
Ground pin to force output
power to zero, but transmitter
remains on. (momentary)
8 Input
PA FORWARD
POWER METER
2V = 5000W (voltage scaled)
1k source impedance
9 Output
PE REVERSE
POWER METER
2V = 500W (voltage scaled)
1k source impedance
10 Output
PA VOLTS METER 2V = 50V (linear scale)
1k source impedance
11 Output
PA AMPS METER 2V = 200A (linear scale)
1k source impedance
12 Output
FM ON STATUS Open collector
24V @ 100mA max.
Ground = FM carriers on
13 Output
HD ON STATUS Open collector
24V @ 100mA max.
Ground = HD carriers on
14 Output
Mode Summary:
FM mode = pin 13 ground, pin 14 open
HD mode = pin 13 open, pin 14 ground
FM+HD mode = pins 13 & 14 ground
SL mode = pins 13 & 14 open
TX OFF STATUS
*Note-1
Open collector
24V @ 100mA max.
Ground = Tx is switched off
15 Output
Table 2-2 REMOTE CONTROL (D-sub 25, amplifier rear)
Designation Remarks Pin
*Note-1
Units produced after fall 2010 have this logic inverted to TX ON STATUS.
That is, this pin is grounded when the transmitter is switched on and high
impedance when the transmitter is switched off.
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