Specifications; Available Clock Modules; Stratum 2E Rubidium Clock Module Specifications - Symmetricom TSG-3800 Series User Manual

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, ± 12 vDC power for the analog sections, and +24 vDC power for the oscillator.
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

Symmetricom offers several different Clock modules, as listed in
your local distributor for price and availability of these and other modules for the
TSG-3800.
Table 6-7. Available Clock Modules
Item Number
23478272-001-0
23478272-004-0
23478272-011-0
23478272-014-0
These Clock modules meet and exceed a wide range of specifications and
requirements. For signal characteristics and specifications, please refer to,
6-8 and Table 6-9
Table 6-8. Stratum 2E Rubidium Clock Module Specifications
Signal Characteristic
Accuracy (Free Running)
Stability (Holdover)0 to 24 hrs @ 25°
C ± 15°C 0 to 24 hrs -5 to 50°C
Pull-In Range (Acquire Mode)
Tuning Resolution (Locked Mode)
Warm-Up Time (Warmup Mode)
Acquisition Time (Acquire Mode)
12778474-002-2 Revision F – March 2004
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Description
Stratum 3E Quartz Clock Module
Stratum 2E Rubidium Clock Module
Stratum 3E Quartz Clock Module, EMI
Rubidium
Stratum 2E
for the different types of Clock modules.
±
–9
< 1 x 10E
±
–11
< 2 x 10E
±
–8
4 x 10E
–12
2.2 x 10E
<10 Minutes
< 20 Minutes to enter Lock Mode
CPU, Frame Generator, and Clock Modules
Table
Clock module, EMI
Specification
per 20 years
±
–10
< 1 x 10E
TSG-3800 User's Guide 181
Clock Module
6-7. Contact
Table