Smiths TRAK 9100 - Page 56

A-4
TM4400013 REV. D
Model 9100
Main Frame
Distribution 6
module slots
Dimensions 5.22 high (3U), 19 inches wide,
and 15 inches deep
Weight 25 pounds with full complement
of modules
Finish Clear anodized aluminum or
satin black (optional)
Operating -30
o
C to +60
o
C, with modules
Temperature
Humidity 95% relative, non-condensing,
with modules
Model 9101
GPS Reference Module
with rubidium oscillator
A GPS timing receiver disciplines a rubidium
oscillator and provides the following Model
9100 bus outputs:
• 10 MHz
• 5 MHz
• 1 PPS
• IRIG-B
• Others / specials
Rubidium 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)
Model 9101
GPS Reference Module
with rubidium oscillator,
(continued)
Aging rate, <1 X 10
-11
/ day at +25
o
C, ± 3
o
(no GPS) <2 X 10
-11
/ month at +25
o
C, ±
3
o
Holdover ≤ 5 – 10 μsec / week after 72
hours of discipline
Model 9101
GPS Reference Module
with single 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 at +25
o
C, ± 3
o
(no GPS)
Holdover ≤ 5 – 10 μsec / day after 72
hours of discipline