A-5
TM4400013 REV. D
Model 9101
GPS Reference Module
with double oven crystal oscillator
With the exception of specifications, this GPS
Reference module is functionally equivalent to
the rubidium model.
Crystal Oscillator Characteristics
Accuracy, <1 X 10
-11
, one hour averaging
with GPS, <1 X 10
-12
, one day averaging
(Frequency
domain)
Accuracy, 50 – 100 ns
with GPS,
(time
domain)
Aging rate, <5 X 10
-10
/ day –30
o
C to +60
o
C
(no GPS)
Holdover ≤ 5 – 10 μsec / day after 72
hours of discipline
Model 9104
Fault Sense Unit
The FSU detects system failures, provides
switching signals to output modules, and
contains Alarm, RS-232 I/O, and Network
circuitry.
Alarms, Relay, form C contacts
Major / minor
RS-232 I/O
Message Consult factory for details
Format
Baud rate 9600, fixed
Data bits 8
Parity None
Stop bits 1
Network 10 BaseT
Features Network Time Server and Telnet
Model 9106
Digital Distribution Module
Four channel digital pulse rate distribution
module. Up to six may be installed in main
frame.
Output Characteristics
Rise/ all times ≤ 2 ns
Level TTL
Drive 50Ω
Outputs 4 each
Connectors BNC female, TNC optional
Model 9107
Frequency Distribution Module
Four channel sine wave and IRIG-B
distribution module. Up to six may be installed
in main frame.
Output Characteristics
Freq. Response DC to 50 MHz, ± 2 dB
Level Fixed, 1 Vrms (+13 dBm), ± 2
dB
Drive 50Ω
Outputs 4 each
Connectors BNC female, TNC optional
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