Functional Specifications - Symmetricom SSU-2000e User Manual

Table 6-7. Type I Clock Module Status LED Indicators (Continued)
Indicator Color
Acquire Green
Locked Green
Holdover Amber

Functional Specifications

Table 6-8 lists the specifications for the Type I Clock module.
Table 6-8. Type I Clock Module Specifications
Performance Characteristic
Holdover Stability
0 to 24 hrs @ –5 to +45°C
Numeric Controlled Oscillator
(NCO) PLL lock range
Tuning Resolution (Locked Mode)
Warm-up Time (Warm-up Mode)
Wander Output (Holdover)
Jitter (Locked or Holdover)
Configuration Data
Prior to shipping, all required operational software is factory-loaded. The
SSU-2000e ships with a factory default (basic) configuration set and often does not
require further configuration. Refer to the SSU-2000e Technical Reference for a list
of the factory default settings and the default Priority Quality Level (PQL) values.
Table 6-9 contains a listing of software configuration options and factory defaults for
the Type I Clock module
12713140-002-2 Revision E – October 2006
On = Clock module is acquiring a lock on a signal
Off = Not acquiring a lock on a signal
On = Clock module is locked on a signal
Off = Clock module is not locked on a signal
On = Clock module is in Holdover mode of operation
Off = Clock module is not in Holdover mode
-9
±2 x 10 (after 30 days operation)
-4
±5 x 10
-13
<1 x 10
20 minutes
Includes effects of all SSU-2000e modules:
Compliant with clock levels per ITU-T G.812, Type I and
ETSI EN300 462-4
< 4 ns p-p (measured at the CLKA/BIN 8 kHz output)
.
Chapter 6 Clock Module Reference Data
Description
Specification
SSU-2000e User's Guide 153
Type I Clock Module