Toshiba GRT100 Series Instruction Manual page 48

Transformer
Module (VCT)
I
CT  8
CT  1 2
or
CT  1 5
AC input or
V
VT  1
External
IRIG-B
clock
port
Local
Personal
Computer
(*1) I03: required for Model 102, 202
Figure 3.1.3 Hardware Block Diagram (Models 101, 102, 201 and 202)
Signal Processing Module (SPM)
Analogue A/D
Converter
filter
MPU1
Human Machine Interface (HMI)
Liquid crystal display
40characters4lines
Operation keys
LEDs
RS232C
Monitoring jacks
I/F
 47 
Binary I/O Module (IO1)
DC/DC
Converter
Binary input
Binary output
(High speed)
MPU2
Binary I/O Module (IO2)
Binary output
Binary input
Transceiver
Binary I/O Module (IO3)
Binary output
6 F 2 S 0 7 8 9
DC
supply
 1 3
Trip
 5
command
 1 4
 3
RS485
Remote
Setting and
Monitoring
System
(*1)
 1 0