Endace EDM05-01, Руководство пользователя

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EDM05-01v6 Time Distribution Server User Guide - Introduction
6 ©2011 Endace Technology Ltd. Confidential - Version 6 - November 2011
Minimum Requirements
General
The TDS2 Server Module minimum equipment requirements are:
 12VDC to rear panel.
 One of the following external time reference sources:
 GPS input from Trimble Acutime 2000 GPS Time Receiver, signal type RS422.

CDMA input from Endrun Technologies Praecis Ct CDMA time receiver, signal type RS232.
 GPS input from an Endace TTL signal adapter, see Accessories (page 6).
 Standard Ethernet type RJ45-RJ45 cabling for connecting to DAG cards.
The timing signal ports use RJ45 connectors. These can be connected to a DAG card using normal Ethernet type
Cat5/6 cable and infrastructure using straight-through type only.
Note
:
Never connect the TDS2 Server module or TDS6 Expansion Units directly to active Ethernet equipment.
Trimble Acutime 2000
The Trimble Acutime 2000 GPS receiver can be purchased as part of the Acutime 2000 Synchronization Kit – Trimble
part number 40986-00. The kit includes integrated antenna/receiver, 100ft cable, power supply and signal converter.
However, only the antenna/receiver and cable are needed for use with the TDS2 Server Module.
An Endace DB9 to DB25 adapter to connect the TDS2 Module to a Trimble Acutime 2000 receiver is supplied with all
TDS2 Modules.
Note:
Use only the supplied adapter for this connection. The wiring is different to standard DB9-DB25 adapters available for
RS232 communications.
Praecis Ct CDMA
The Praecis Ct CDMA time receiver is available directly from Endrun Technologies Ltd. To use this receiver there must
be a CDMA network available with good signal at the intended installation site. The signal may be checked using a
CDMA cellular phone in digital mode.
Accessories
The following optional equipment is available:
 12VDC power adapter
 19 inch 1U rack-mount kit
 Endace TDS6 Expansion Unit.
 Endace TTL adapter. This is for converting TTL signals (BNC connector) to GPS signals (DB9 connector).