Odetics Telecom GPStarplus 365, User Manual

Page: 31 / 90

Odetics
Telecom GPStar plus Model 365
365-8006
Specifications 2 - 16
2.7.6 Time Code Output
The time code output signals may be use for general-purpose time distribution, display,
and recording tape annotation applications requiring time of year.
Two time code output ports are provided. One port provides a modulated carrier time
code output signal, and the second port provides the time code as a dc-shift signal.
The format of the time code signal can only be selected by means of the unit's front
panel keypad, not by commands through the RS-232 control interface port.
2.7.6.1 Modulated Carrier Output
Connector Identification...................................................... CODE OUT AC
Number of Outputs..................................................................................... 1
Connector Type ........................................................................ BNC female
Code Format ...........................................................IRIG A, IRIG B, IRIG G,
user selected
Mark Amplitude Level ............................ 6 Vpp into a 600
Ω
load (nominal)
3 Vpp into a 50
Ω
load (nominal)
Mark to Space ratio............................................................................. 3 to 1
Output Impedance ..................................................................50
Ω
nominal
2.7.6.2 DC-Shift Output
Connector Identification...................................................... CODE OUT DC
Number of Outputs..................................................................................... 1
Connector Type ........................................................................ BNC female
Code Format ....................................................................Same as selected
modulated carrier output
Coherence to 1 PPS Output ............................................................ < 10 ns
Output Drive
High Level ..................................................... > + 2.0 V into a 50
Ω
load
(> + 3.0 V open circuit)
Low Level ......................................................... < + 0.5 V into 50
Ω
load
Rise/Fall Time (10% to 90% points) ................................................ < 10 ns
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