Symmetricom TimeHub 5500 User Manual

276 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009
Chapter 6 Specifications
Factory Default Values
Input Priority  Input no. +1
(prior to firmware
version 4263B)
 PRS: 1
Others: 2
Remote: 2
(firmware version 4263B
and later)
0 to 9
Input Selection Mode Auto Auto | Manual | Forced
Main Clock Y Y (Master) | N (Remote)
Measurement Delay 0 sec 0 to 1800 sec
Output Connector Card
type
Don’t Care Don’t Care | DS1 | CC | TS | GTS |
5MHZ
PRC Frequency N Y (5 MHz) | N (10 MHz)
Pull-in Range
 16 (ST2)
 4600 (ST3E)
10 to 10 000 ppb
Quality Cutoff
(Read Input SSM enabled)
3 1 to 9
Quality Level
(Read Input SSM
disabled)
 1 (PRS)
 2 (Inputs 1 –4)
1 to 9
Read Input SSM Bits N Y | N
Sync Mode Auto
 Auto | Manual | Force (prior to
firmware version 4263B)
 Auto | SSM (firmware version
4263B and later)
Time Constant (ST2) 768 192 | 768 | 3072 | 12288 | 49152
Time Constant (ST3E) 384 102 | 190 | 384 | 1824 | 24864
Wait Time to restore Sync
source
30 sec 0 to 1000 sec
Table 6-2 Clock Card Default Settings (Continued)
Setting Factory Default Range

Symmetricom TimeHub 5500 Specifications

General

Brand	Symmetricom
Model	TimeHub 5500
Category	Data Loggers
Language	English