Communication Ports; Usb Port; Rs485 Port; Optional Fibre Or Ethernet Lan Port For Model 402A And 422A - Toshiba GRE110 Instruction Manual

②
｜ : Used for CB close operation. When CB is in the closed position, the ｜ key
does not function
③
L/R : Used for CB control hierarchy (local / remote) change.
CAUTION
The CB close control key ｜ is linked to BO1 and the CB open control key ○ is linked to BO2,
when control function is enable.
USB connector
The USB connector is a B-type connector for connection with a local personal computer.

4.1.2 Communication Ports

The following three interfaces are mounted as communication ports:
•

USB port

•

RS485 port

•
Optional Communication Unit port
USB port
This connector is a standard B-type connector for USB transmission and is mounted on the front
panel. By connecting a personal computer to this connector, setting operation and display functions
can be performed.
RS485 port
The RS485 port is used for MODBUS communication or the IEC60870-5-103 communication to
connect between relays and to construct a network communication system.
The RS485 port is provided on the rear of the relay as shown in Figure 4.1.1.

Optional Fibre or Ethernet LAN port for model 402A and 422A

An optional Ethernet LAN port can be connected to substation automation system via an Ethernet
communication networks using the IEC 61850 protocol. 100Base-TX (T1: RJ-45 connector) for
Ethernet LAN is provided at the rear of the relay, as shown in Figure 4.1.3.
TB2
TB1
RS485 Port
Figure 4.1.2 Location of Communication Port
 81 
6 F 2 T 0 1 7 2