Yaskawa Modbus TCP/IP SI-EM3D - Manual (Page 11)

u Communication Connector CN1
The communication connector on the option is a modular RJ45 female connector designated
CN1.
CN1 is the connection point for a customer-supplied male Modbus network communication
cable.
Table 2 Male, 8-Way Modular Connector (Customer-Supplied)
Male 8-Way Modular Connector Pin Description
Latch release
1 2 3 4 5 6 7 8
1 (Pair 2) Transmit data (TXD) +
2 (Pair 2) Transmit data (TXD) -
3 (Pair 3) Receive data (RXD) +
4 (Pair 1) Not used <1>
5 (Pair 1) Not used <1>
6 (Pair 3) Receive data (RXD) -
7 (Pair 4) Not used <1>
8 (Pair 4) Not used <1>
<1> Not used for 10 Mbps and 100 Mbps networks.
4 Option Components
YASKAWA TOEP YAICOM 18A 1000-Series Option Dual-Port Modbus TCP/IP SI-EM3D Installation Manual 11