Endace Measurement Systems
®
Ltd
http://www.endace.com
EDM05.05-01r1 TDS-2 Module TDS-6 Unit User Manual
Copyright© All rights reserved
5
Version 2. 22 September 2005.
2.1.1 TDS-2 Time Distribution Server Module Architecture
, continued
TDS-2 back-
plate
The TDS-2 module rear-plate contains:
•
12V DC power inlet
•
Power status LED
•
PPS status LED
•
Host connector for connection to a PC
•
Chain out port for optional connection to Endace TDS-6 signal
expansion units
Figure
Figure 2-2 shows the TDS-2 module rear-plate architecture.
Figure 2-2. TDS-2 Module Rear-plate Architecture.
TDS-6 module
When additional time synchronization outputs are required, the capacity of
a TDS-2 module is expanded six outputs at a time without compromising
timing accuracy by attaching up to four Endace TDS6 units.
One TDS-2 module with the maximum number of TDS-6 expansion
modules provides 24 time synchronization outputs derived from a single
external time standard. The TDS-6 unit outputs are connected to up to 24
DAG cards using conventional Ethernet style patch cables.
2.1.2 TDS-2 Time Distribution Server Module System Requirements
Description
The TDS-2 Time Distribution Server module minimum operating system
requirements are:
•
12V DC power to rear panel, typical power consumption is 2 watts
•
An external time reference source:
o
GPS input from Trimble Acutime 2000 GPS time receiver,
Type RS422
o
CDMA input from Endrun Technologies Praecis Ct CDMA
time receiver, Type RS232
•
Standard Ethernet type RJ45-RJ45 cabling for connecting to DAG
cards
Continued on next page
