Specifications; Timing Insertion Module Specifications - Symmetricom TSG-3800 Series User Manual

Timing signal generator
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Output Modules
Timing Insertion Module
Power A and B on the main shelf provide power to the module. These redundant
sources of –48 vDC are diode-coupled and fused, allowing the module to draw
power from either source. The internal fuse labeled F1 protects the circuitry from
excessive current. The DC-to-DC Converter changes the negative voltage into +5
vDC; the green POWER indicator on the front panel is lit when either power source
is available to the module. The POWER indicator turns off when power is lost, for
example if the fuse on the module opens, if both –48 vDC power inputs are lost, or if
the converter fails.

Specifications

Table 7-53
lists the functional specifications of the Timing Insertion module.
Table 7-53. Timing Insertion Module Specifications
Signal Characteristic
Signal Type
Connector
Format
Amplitude (nominal)
Signal Faults detected
Input Impedance
Monitor
Jitter Tolerance
Buffer Size
Delay
System Timing source
Signal Type
Connector
Format
Waveshape
Amplitude (at 0' LBO)
282 TSG-3800 User's Guide
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DS1 Input to TIM
DS1
50 contact connector, example Cinch #57-10500-8750
D4 or ESF, AMI or B8ZS (jumper selectable)
0.5 to 3.6 V (base to peak)
LOS, OOF, AIS
100 Ω
Bantam jack, 860 Ω isolation
per TA-TSY-000378
Retuning Buffer
386 bits
approx. 135 µs when centered
TIU Clock Module A or B or AUSTRON 3800 TSG (automatic switch
on Clock Module failure)
DS1 Output From TIM
DS1
50 contact connector, example Cinch #57-10500-8750
D4 or ESF, B8ZS/AMI (same as input)
Per ANSI T1.102-1987
3 ± 0.6 V base to peak
Specification
12778474-002-2 Revision F – March 2004

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