800gench1.fm Rev. A 800TCU User’s Guide 1-9
Standard Option Specifications General Information
IRIG PB1 (Parallel Binary)
Data: Nine bits of binary days, 27 bits of ms, time of day.
Data rate: 1 kPPS
Parity1: Odd for 27 bits of ms plus days
Parity2: Odd for 27 bits of ms
Data Ready Pulse: Active low pulse while data is changing. At 0 V for
approximately 30 µs.
Drive: Positive true HCTTL, sink and source 8 mA
Connector: AMP 205514-1, fixed male jackscrew at pin A
(200874-1), fixed female jackscrew at pin FF (200875-1).
Pin Assignments: See Table 1-2
Reference Frequency Outputs
Frequencies: 100 Hz, 1 kHz, 10 kHz and 100 kHz
Amplitude: Adjustable, 0 to 1 Vrms into 75 Ω to ground
Video Time Inserter
This option is used to superimpose time-of-year information on a the user’s video signal.
Controls: Time Insertion on/off
Background on/off
Background white/black
Character intensity
Days information on/off
Ms information on/off
Horizontal position
Vertical position
Horizontal Character size
Vertical Character size
Resolution: Generator: 1 ms
Synchronized Generator: 1 ms
Translator: 10 ms
Termination: Switchable on or off, 75 Ω
Bypass: When the power is off, the video input signal is directly
connected to the output.
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