Symmetricom TimeHub 5500 User Manual

122 TimeHub 5500 User’s Guide 097-55501-01 Revision M – January 2009
Chapter 3 Installing the TimeHub 5500
Making Signal Connections
2. Connect the other end of the cable to the TOD TimeSource connector on the next
NTP Output Connector module.
Figure 3-19. Daisy-chaining One Input to Multiple NTP Output Connector Modules
Making Communication Connections
Connecting a LAN Cable
Connect the LAN cable from the network to the RJ-45 (10Base-T) connector labeled
LAN on the rear of the shelf. Refer to Figure 3-13 for the connector location; Table
3-6 describes the connector pinout.
Each TimeHub 5500 has its own IP address that can be set through the local
RS-232 port, as described in Communicating by Ethernet, on page 151. Once the
IP address has been set and a LAN connection made, the TimeHub 5500 can be
remotely accessed on a network.
Table 3-6. Pinout of LAN Connector
Pin Signal Abbreviation Direction
1 Transmit data + TXD +
From TimeHub 5500
2 Transmit data – TXD –
From TimeHub 5500
3 Receive data + RXD +
To TimeHub 5500
6 Receive data – RXD –
To TimeHub 5500
Note: Pins not listed are reserved for future use.
Input from
TimeSource 3x00
TOD Output
NTP Output
Connector modules
installed in Master
or Expansion
shelves

Symmetricom TimeHub 5500 Specifications

General

Brand	Symmetricom
Model	TimeHub 5500
Category	Data Loggers
Language	English