Operation Manual

Chapter 4 External I/O Connections 31

Note: For information about serial port jumpers on the Netra t 1400/1405 system main logic board, see the Netra t 1400/1405 System

Reference Manual.

Twisted-Pair Ethernet (TPE) Connector

FIGURE 4-4 RJ45 TPE Socket

TPE Cable-Type Connectivity

The following types of twisted-pair Ethernet cable can be connected to the

8-pin TPE connector:

■ For 10BASE-T applications, shielded twisted-pair (STP) cable:

■ Category 3 (STP-3, voice grade)

■ Category 4 (STP-4)

■ Category 5 (STP-5, data grade)

■ For 100BASE-T applications, shielded twisted-pair category 5 (STP-5, data grade)

cable.

18–19 none none Not connected

20 DTR O Data Terminal Ready

21-23 none none Not connected

24 TxC O Transmit Clock

25 none none Not connected

TABLE 4-3 TPE Connector Pinout

Pin Description Pin Description

1 Transmit Data + 5 Common Mode Termination

2 Transmit Data – 6 Receive Data –

3 Receive Data + 7 Common Mode Termination

4 Common Mode Termination 8 Common Mode Termination

TABLE 4-2 Serial Connector Pinout, RS423/RS232 (Continued)

Pin Function I/O Signal Description

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