Spectracom 8183A GTP, Инструкция по эксплуатации

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Section 1: General Information
Page 1-6 NetClock/GTP Instruction Manual
Accuracy: Data stream on time marker within ± 100
microseconds of UTC for Formats 0, 1, 3, and 90
selected. Formats 2 and 4 are within ±1 millisecond
of UTC.
Configuration: Baud rate and output data formats are selected using
the Serial Setup Interface. Bit rate selections are
1200, 2400, 4800, and 9600 baud. There are six data
format selections available. In addition, time zone
offset and DST rule can be configured.
1.5.6 FAA IRIG B Outputs
Signal: Pulse-width-coded FAA modified IRIG B in RS-
422/485 levels. Four buffered outputs provided. FAA
IRIG B modifications include satellite lock indicator
and error flags between Position Identifiers P5 and P6
and removal of the straight binary seconds data.
Accuracy: ±2 microseconds of UTC when locked to GPS.
Connector: DB25 Male. Connector pin-out is listed below:
Output 1: Pin 2 (IRIG-B+) Pin 9 (IRIG-B-)
Output 2: Pin 3 (IRIG-B+) Pin 10 (IRIG-B-)
Output 3: Pin 4 (IRIG-B+) Pin 11 (IRIG-B-)
Output 4: Pin 5 (IRIG-B+) Pin 12 (IRIG-B-)
Ground: Pins 1,7,24 and 25.
Configuration: The IRIG time data can be configured to reflect local
time. UTC time zone offset and DST rule selections
are applied to all four IRIG outputs.
1.5.7 1PPS Output
Signal: One pulse-per-second square wave derived from the
GPS receiver.
Signal Level: TTL compatible into high impedance loads, 1.5 V
base-to-peak into 50 ohms.
Pulse Width: 200 milliseconds.
Accuracy: Positive edge within ± 500 nanoseconds of UTC when
locked to GPS.
Connector: BNC female.