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Chapter 3 Installing the TimeSource 3100

Making Cable Connections

70 TimeSource 3100 User’s Guide 097-72020-01 Revision K – December 2005

Making Ethernet Connections

Connect the Ethernet cable from the network to the 10base-T Ethernet connector

labeled E-NET. See Table 3-8 for the connector location, and Table 3-4 for the

connector pinouts.

Note: Pins not listed are reserved for future use.

Connecting to Communication Port 1

To provide an RS-232 link for TL1 command access to the TimeSource 3100,

connect to port 1 at the female 25-pin D connector labeled COM 1. See Figure 3-8

for the location of the connector. See Table 3-5 for the connector pinouts.

Note: Pins not listed are reserved for future use.

Table 3-4. Ethernet RJ-45 Connector Pinout

Pin Signal Abbreviation Direction

1 Transmit data + TXD + From TimeSource 3100

2 Transmit data – TXD – From TimeSource 3100

3 Receive data + RXD + To TimeSource 3100

6 Receive data – RXD – To TimeSource 3100

Note: The COM 1 connector transmits data on pin 2 and receives

data on pin 3. Be sure the other equipment receives data from the

transmitting pin, and transmits data to the receiving pin.

Table 3-5. COM 1 Connector Pinout

Pin Signal Abbreviation Direction

2 Transmit data TXD From TimeSource 3100

3 Receive data RXD To TimeSource 3100

4 Request to send RTS From TimeSource 3100

5 Clear to send CTS To TimeSource 3100

6 Data set ready DSR To TimeSource 3100

7 Signal ground GND —

20 Data terminal ready DTR From TimeSource 3100

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