Making Additional Connections And Powering Up - Symmetricom XLi IEEE 1588 User Manual

Symmetricom xli ieee 1588 clock user guide

Table of Contents

VSWR, and input impedance also affect system performance. Symmetricom recommends using the

standard 12-volt capable antenna and cable provided with the GPS receiver.

Figure 4: GPS Signal Strength Requirements

Connect the GPS antenna cable to the GPS receiver's ANTENNA connector at the rear of the XLi.

Note:

Use a 12-volt capable GPS antenna.

Making Additional Connections and Powering Up

Make the following connections to the XLi (all cables supplied):

For access to the web and command line interfaces, connect NET network port (on the Main CPU

Card, 87-8000) to the LAN using the Cat 5 network cable (supplied).

For local access to the command line interface only, connect the SERIAL I/O port (on the Main CPU

Card, 87-8000) to the to the PC's serial port using a null modem cable.

Connect the 1588 network port to the timing network.

Connect the AC Power Supply it to a power source. The green STATUS light on the power supply

indicates that the XLi is receiving power.

Upon receiving power, the XLi goes through its startup sequence; displaying "BOOTING", "LOAD-

ING", and "STARTING". After approximately 40 seconds, the XLi displays the clock status, and user

interfaces (front panel/command line) become available. The IEEE 1588 card requires an additional

2 minutes to complete its startup sequence before it is available from the user interfaces.

Warning:

Ensure that a disconnect device, such as a switch, with the appropriate voltage/

current rating is provided when operating/installing the XLi.

XLi IEEE 1588 Clock

997-01510-03, Rev. C, 12/12/2006

Table of Contents

Xli ieee 1588 clock