LOCAL OPERATION CONTROLS AND CONNECTORS
3-10
12 PULSE IN
50Ω BNC socket: accepts a pulsed input. TTL logic ‘1’ (2 to
5 V) turns the carrier on, logic ‘0’ (0 to 0.8 V) turns it off.
Maximum input is ±10 V.
I/AM OUT
Option 009 only. 50 Ω BNC socket, 1 V RMS: outputs the I
signal from the ARB or the output of the AM source.
13
I OUT
Option 009 only. Opposite polarity, equal magnitude to I
signal on I/AM OUT.
14 LVDS IN/OUT 68-way connector inputs/outputs symbol data; IQ data;
timing/control signals. For contact allocation see Chapter 2.
15 AUX IN/OUT 25-way connector inputs/outputs burst gate control signals;
A/B level burst attenuation control signals; ARB trigger;
markers. For contact allocation see Chapter 2.
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