Toshiba GR200 Series Instruction Manual page 1066

1000Base-LX module (LC plug)
4.
A pair of optic fiber cables is required. The 1000Base-LX module can be used for the GR-TIEMS
operation or the LAN communication. Use SM mode fiber when long distance is required.
C11
C12
RS485 module
5.
RS485 module has a PCB connector. The module should be connected with a shielded-twisted-
pair cable; it is used for the communication of the IEC60870-5-103. The terminal arrangement
and references are shown below. The cable sheath should be connected with the frame ground
(FG) in the IED case. For the use of the a shielded-twisted-pair cable, the user should note that
the total length should be less than 1200 meter (0.75 miles); the terminal resistor (150 ohms)
should be connected when any connector is not connected. For setting the parameters, see
Communication protocol: RS485 communication
Chapter
Top
Bottom
a. View from connector edge
C11
C12
Figure 5.3-7 1000Base-LX module
PCB connector
A1 B1
COM-A(+)
A2 B2
COM-B(−)
A3 B3
COMM(GND)
0V
b. Port circuit
Figure 5.3-8 RS485 connection and module
- 1043 -
.
A1
B1
A2
B2
A3
B3
Frame ground (FG)
6F2S1914 (0.49)
Sheath
A cable for
an IED
Sheath
A cable for
another
IED
GRL200 (Soft 033 & 037)