Toshiba GR 200 Series User manual

6F2S1916 (Rev. 0.5)
INSTRUCTION MANUAL
Interface unit
GR 200 series (GIF200)

6F2S1916 (0.5)
ii
Safety Precautions
Before using this equipment, please read this chapter carefully.
This chapter describes the safety precautions recommended when using the GR
equipment. Before installing and using the equipment, this chapter must be thoroughly
read and understood.
Explanation of symbols used
Signal words such as DANGER, WARNING, and CAUTION, will be followed by
important safety information that must be carefully reviewed.
Indicates an imminently hazardous situation which will result in
death or serious injury if you do not follow the instructions.
Indicates a potentially hazardous situation which could result in
death or serious injury if you do not follow the instructions.
CAUTION Indicates a potentially hazardous situation which if not avoided,
may result in minor injury or moderate injury or property
damage.
•Current transformer circuit
Never allow the current transformer (CT) secondary circuit connected to this equipment to
be opened while the primary system is live. Opening the CT circuit will produce a
dangerously high voltage.
•Exposed terminals
Do not touch the terminals of this equipment while the power is on, as the high voltage
generated is dangerous.
•Residual voltage
Hazardous voltage can be present in the DC circuit just after switching off the DC power
supply. It takes approximately 30 seconds for the voltage to discharge.
DANGER
WARNING
DANGER
WARNING

6F2S1916 (0.5)
iii
CAUTION
•Earth
The earthing terminal of the equipment must be securely earthed.
CAUTION
•Operating environment
The equipment must only be used within the range of ambient temperature, humidity and
dust detailed in the specification and in an environment free of abnormal vibration.
•Ratings
Before applying AC voltage and current or the DC power supply to the equipment, check
that they conform to the equipment ratings.
•Printed circuit board
Do not attach and remove printed circuit boards when the DC power to the equipment is
on, as this may cause the equipment to malfunction.
•External circuit
When connecting the output contacts of the equipment to an external circuit, carefully
check the supply voltage used in order to prevent the connected circuit from overheating.
•Connection cable
Carefully handle the connection cable without applying excessive force.
•Modification
Do not modify this equipment, as this may cause the equipment to malfunction.

6F2S1916 (0.5)
iv
•Disposal
This equipment contains neither expendable supplies nor parts that can be recycled.
When disposing of this equipment, the customer must contact an operator responsible for
industrial waste disposal, and request that the operator dispose of this equipment in
accordance with the local waste disposal regulations; otherwise the person who disposes
of this equipment may be punished under local regulations. When disposing of this
equipment is practiced by the customer acting on their own behalf, it must be done so in a
safe manner according to local regulations. For further information in terms of the disposal,
the customer shall contact to a local dealer and sales staff at Toshiba Energy Systems &
Solutions Corporation (Toshiba ESS, Japan).
This equipment contains neither expendable supplies nor recyclables.
•Plastics material
This equipment contains the following plastics material.
- ABS, Polycarbonate, Acrylic resins, Nylon 66, and others.
Equipment installation and operation
•Equipment installation
Never remove cables at frame ground terminals (FGs) while the AC/DC power supplies.
•Equipment operation
The user shall have responsibilities to use and install the equipment where the
specifications are designated by the manufacture. Never operate the equipment on the
condition where the manufacture cannot intend. Otherwise, the safety function furnished
into the equipment may not be operated properly.
•Symbols
Symbol
Description
Protective conductor terminal
Caution, risk of electric shock

6F2S1916 (0.5)
v
Liability, copyright and others
•Disclaimer of liability
We have checked the description of this manual against the hardware and software
described, but we cannot guarantee that all deviations have been eliminated from the
description completely; hence, no liability can be accepted for any errors or omissions
contained in the information given. We review the information in this manual regularly
and there will be some corrections in subsequent editions. We reserve the right to
make technical improvements without notice.
•Copyright
© Toshiba Energy Systems & Solutions Corporation 2019.
All rights reserved.
•Registered Trademarks
Product/Equipment names (mentioned herein) may be trademarks of their respective
companies.

6F2S1916 (0.5)
vi
Contents
1Introduction ............................................................................................................................................ 1
Outline ............................................................................................................................................. 1
Connection and signal-conversion.................................................................................................. 1
2Settings and operations.......................................................................................................................... 2
Overview .......................................................................................................................................... 2
Connection in C37.94 at ST connectors ......................................................................................... 2
Connection in G.703 at CN1 (D-sub) connector ............................................................................ 3
DC power at TB1 connector............................................................................................................ 3
LED indicators................................................................................................................................. 3
Signal control on failures................................................................................................................ 4
(i) Loss of signal (LOS) in C37.94.................................................................................................... 4
(ii) MUX operation when LOS being detected............................................................................. 4
(iii) Erroneous data with three yellow alarms (without LOS)..................................................... 5
Operations for detecting errors in G.703 and C37.94................................................................... 5
(i) No data received in C37.94 ......................................................................................................... 5
(ii) LOS failure detected in GIF200.............................................................................................. 5
(iii) G.703 reception failure detected in GIF200........................................................................... 6
(iv) G.703 transmission failure detected in MUX ........................................................................ 6
Bit synchronization for sending ..................................................................................................... 7
3Installation.............................................................................................................................................. 8
Mounting.......................................................................................................................................... 8
Electrostatic Discharge................................................................................................................... 8
Handling Precautions ..................................................................................................................... 8
4Commissioning and maintenance ....................................................................................................... 10
Precautions .................................................................................................................................... 10
Preparation .................................................................................................................................... 10
(i) Test equipment........................................................................................................................... 10
(ii) Visual inspection .................................................................................................................... 10
(iii) Unit ratings ............................................................................................................................ 10
Commissioning Procedure ............................................................................................................ 10
Maintenance .................................................................................................................................. 10
Appendix....................................................................................................................................................... 11

6F2S1916 (0.5)
GIF200
-1-
1 Introduction
Outline
The optical interface unit (GIF200) is used to connect with the multiplexer (MUX), when the
line protection relay (GRL200 IED having a protection-signaling module in ST port) is
required to connect with the remote GLR200 IED in the switched communication network
achieved with the MUX. The signals of the GIF200 unit are complied with the IEEE C37.94
standard and the ITU-T G.703 standards.
Connection and signal-conversion
The information of the line protection can be required to exchange in the telecommunication
protocol defined in the ITU-T G.703 (64kbps). Hence, the information of the IEEE C37.94
(N=3; 2048kbps) generated in the GRL200 IED should be converted in the ITU-T G.703
(64kbps) format. Figure 1.2-1 illustrates the line protection structure achieved with the
GRL200 IEDs together with GIF200 units and the MUXs.
Communication
module
ITU-T G.703 I/F
RX
TX
Protection
Rear
GRL200 IED
GIF200 unit
Switched communication by
MUX
GI fiber optic cable
MUX
IEEE C37.94 I/F
MUX
Busbar
Busbar
GIF200 unit
GRL200 IED
Transmission line
(50/125 or 62.5/125μm)
Figure 1.2-1 Data communication achieved by MUX with GIF200
In most situations, the telecommunications equipment is remote from the protection
equipment in the substation. The GIF200 unit is normally located closed to the MUX and may
be up to 2km away from the GRL200 IED. The fiber optic cable must be 50/125μm or
62.5/125μm for distance up to 2km; it should be terminated with standard ST type connectors.
The GIF200 is connected to the switched telecommunication network via a MUX, and the
interface is defined according to the ITU-T G.703 standard. The connections should be made
using shielded, twisted pair cable.

6F2S1916 (0.5)
GIF200
-2-
2 Settings and operations
Figure 2.1-1 shows the outline of the GIF200 unit. Two optical modules (E/O and O/E with ST
port) for the IEEE C37.94 and a CN1 (D-sub 25-pin or DB-25) socket for the ITU-T G.703 are
provided; the TB1 terminal is provided for the DC power input.
Overview
The O/E and E/O conversion is performed on both transmit and receive signals from the
GRL200 IED respectively. The optical signals are encoded in CMI type (50% duty factor) and
it makes the signals easy to be checked during commissioning. Code conversion is performed
for connection to the ITU-T G.703, which is a synchronous interface and provides a 64 kHz
timing signal, which the GIF200 uses for synchronization†.
†Note:When GIF200 unit has lost clock signals coming from MUX, GIF200 unit can send
signals to MUX using GIF200 internal clock signal. This self-running is only
applicable when GIF200 unit is produced in the ITU-T G.703/contra-directional.
GIF200 unit
GI fiber optic cable
(50/125 or 62.5/125μm)
DC24 to 220V
N
P
FG
DC5V
FG
FG
FG
G
P
TB1/Power
RX
TX
ST port
C37.94 signal
E/O
O/E
Code
conversion
TX
Ta
Tb
CLK†
Ra
Rb
RX
Code
conversion
25
24
21
20
23
22
CN1/G703
Twist cable
G.703 signals
From/to MUX
From/to GRL200 IED
Figure 2.1-1 Block diagram in the GIF200
Table 2.1-1 CLK comparison table in ITU-T G.703
CLK signal
Co-directional
Centralized clock
Contra-directional
Transmitter in
G.703
No CLK connection
required with MUX
CLK to be connected with MUX for generate the TX
‡Note:Either “Co-directional (Code=1)”or “Centralized clock/Contra-directional (Code=2)”
is specified by the selection in GIF200 ordering code.
Connection in C37.94 at ST connectors
As shown in Figure 2.1-1, the type of connector for fiber optic (GI type) cable in C37.94 from/to
the GRL200 IED is ST. Note handling with fiber optic cables not to be damaged by rough

6F2S1916 (0.5)
GIF200
-3-
treatment or by exceeding the minimum bend radius of the fiber cable.
Connection in G.703 at CN1 (D-sub) connector
The CN1 (D-sub 25 pin / DB-25) connector is used for connection with the MUX over
twist-pair cables, as shown in Figure 2.3-1 and Table 2.3-1.
6
7
8
10
Ta
Tb
Ra
Rb
Sa
Sb
Transmit (Tx)
Receive (Rx)
Signal Timing (CLK)
GIF200
MUX
(Required only in clauses
1.2.3 and 1.2.2 of G.703)
25
24
23
22
21
20
D-sub
CN1/G703
Figure 2.3-1 Signals between GIF200 and MUX
Table 2.3-1 Electrical connection with MUX
Circuits
Signal names
Signal type
Pin numbers
Transmit (TX)
Ta
ITU-T G.703
25
Tb
24
Timing (CLK)
Sa
21
Sb
20
Receive (RX)
Ra
23
Rb
22
DC power at TB1 connector
The TB1 connector is used for DC power supply. Note that terminal pin numbers 3 and 4 are
shorten for frame ground.
Table 2.4-1 CN1 connector on GIF200 unit
Signal name
Signal type
Pin numbers
P
DC rated voltage
24/48/110/ 220Vdc
1
G
2
FG
Frame ground terminals
3,4, and 5
LED indicators
Eight (8) LEDs are provided to check communication status between the MUX and the
GRL200 IED, as shown in Figure 2.5-1. Table 2.5-1 details the color and functions associated

6F2S1916 (0.5)
GIF200
-4-
with each LED.
GIF200
RX
TX
CF
YAL
PWR
CLK
TX
RX
LED
RX in C37.94
TX in C37.94
CF in C37.94
YAL in C37.94
RX in G.703
TX in G.703
CLK in G.703
Power
Figure 2.5-1 Eight LED indicators on GIF200
Table 2.5-1 Meaning of LED indicators
Type
LED
Color
Function
C37.94
RX
Green
Data (not always ‘1 (level: high)’) being received from IED.
TX
Green
Data (not always ‘1 (level: high)’) being sent for the IED.
CF
Red
Loss of signal (LOS) or detection of the erroneous data
YAL
Red
Detection of “Yellow alarm bit”in header of C37.94†
G.703
RX
Green
Data (not always ‘1 (level: high)’) being received from MUX
TX
Green
Data (not always ‘1 (level: high)’) being sent for MUX
CLK
Green
LED instructs the CLK signal “1 (level: high)”being detected.
DC
PWR
Green
DC 5V generated in good order
†Note: If the CF is detected together with YAL at the same time, YAL is switched off
unconditionally.
Signal control on failures
Signal control is carried out when errors or failures occur in the communication. The following
cases are exemplified.
(i) Loss of signal (LOS) in C37.94
If two or more errors are found in eight consecutive receive frames, an LOS (loss of signal)
command is issued within one millisecond in the GIF200 unit. The LOS command is cleared,
if erroneous data is not found in the last eight consecutive frames.
(ii) MUX operation when LOS being detected
During LOS condition at its optical receive port, the GIF200 changes the “Yellow alarm bit” of

6F2S1916 (0.5)
GIF200
-5-
C37.94 frame from ‘0’ to ‘1’ for a return path from the GIF200 to the GRL2000. Incidentally,
the GIF200 sets all ‘1’ bits for the frames (alarm indication signal (AIS)) from GIF200 to the
MUX.
(iii) Erroneous data with three yellow alarms (without LOS)
When ‘Yellow alarm bit’ and no erroneous signal (LOS) is found in the three consecutive
receive frames from the IED, it is considered the path is “Yellow”. During the Yellow path
condition, the GIF200 replaces the data bits to all ‘1’s for the frames from GIF200 to the IED,
and TX in C37.94 and RX in G.703 LEDs will be off. The Yellow path condition can be cleared
when ‘Yellow alarm bit’ is not found in the last three consecutive receive frames, or when the
LOS signal is detected.
Operations for detecting errors in G.703 and C37.94
Following cases show GIF200 operation against detection of erroneous data in G.703 and
C37.94 frames.
(i) No data received in C37.94
If the GIF200 unit does not receive any data from the IED, it can be detected by the
bit-inversion check function and the GIF200 will set ‘1’ to “Yellow alarm bit” in TX data to be
sent to the GRL200 IED in C37.94 and to the MUX in G.703 (of which frame format is in
accordance with G.703). LEDs for CF in C37.94 will be on.
ITU-T G.703 I/F
GRL200
IED
GIF200 unit
AIS(Alarm
indication signal)
MUX
IEEE C37.94 I/F
(1)
No sending data
Data with “Yellow
alarm bit”
MUX
Data based on
G.703
(2)
(2)
Figure 2.7-1 IED sending data having errors
(ii) LOS failure detected in GIF200
If the GIF200 unit receives erroneous data from the GRL200, which can be detected by the
LOS command, the GIF200 will set ‘1’ to “Yellow alarm bit” in TX data to be sent to the
GRL200, and all the bits will be set to ‘1’ (AIS) in G.703 frames for MUX. LED for TX in G.703
LEDs will be off and LED for CF in C37.94 will be on.

6F2S1916 (0.5)
GIF200
-6-
ITU-T G.703 I/F
GRL200
IED
GIF200 unit
Data based on
G.703
MUX
IEEE C37.94 I/F
(2)
Erroneous data
Data with “Yellow
alarm bit”
MUX
Data based on
G.703
(1)
(3)
Figure 2.7-2 O/E failure in GIF200
(iii) G.703 reception failure detected in GIF200
If the GIF200 does not receive any data from the MUX, the GIF200 unit sends TX data
consisting of all ‘1’bits for the GRL200 IED. As a result, the IED gets to detect the error
status of the MUX.
ITU-T G.703 I/F
GRL200
IED
GIF200 unit
Data based on
G.703
MUX
IEEE C37.94 I/F
(1)
No reception data
Data consisting of all
‘1’bits
MUX
(2)
Data based on
C39.74
Figure 2.7-3 G.703 RX failure in GIF200
(iv) G.703 transmission failure detected in MUX
If the MUX cannot receive data from the GIF200, the MUX issues the AIS by setting ‘1’to all
bits in the frames, the AIS information is transferred to the remote MUX.

6F2S1916 (0.5)
GIF200
-7-
ITU-T G.703 I/F
GRL200
IED
GIF200 unit
MUX
IEEE C37.94 I/F
(1)
No transmission
Data consisting of all
‘1’bits
MUX
Data based on
C39.74
Data based on
C39.74
(2)
Telecommunication
network
Figure 2.7-4 G.703 TX failure in GIF200 unit
Bit synchronization for sending
Synchronized multiplexing should be carried out with any data received from a number of
GIF200 units. Thereby, within the GIF200 unit, the transmission clock for the MUX should be
synchronized with the transmission signal in the C37.94 format. As the transmit/receive
circuit between the GRL200 IED and the GIF200 needs to run in parallel with an oscillator
(2048kHz) of the GIF200 unit, the oscillator is synchronized with the receiving data in the
ITU-T G.703 (64kbps).
Note that the GRL200 IED is forbidden to operate without a clock signal coming from
the GIF200 unit. That is, in the GRL200 IED, transmit and receive signals should be
synchronized with the oscillator within the GIF200 unit. Thus, the user should check to see
that the GRL200 IED needs to operate with the oscillator of the GIF200 unit†.
†Note:The user may be required to set On for the scheme switch [CH1_B.SYN] in the
GRL200 IED, which is to connect with the MUX through the GIF200 unit, provided
that the protection signaling module at C13 on the rear. For more information
about the communication with the MUX, see the section Communication setup of
Chapter Relay application: Transmission control function in the GRL200 IED
instruction manual.

6F2S1916 (0.5)
GIF200
-8-
3 Installation
On receiving the GIF200 unit, carry out the acceptance inspection immediately. In particular,
check for damage during transportation, and if any is found, contact the vendor. Always store
the unit in a clean, dry environment.
Mounting
Refer to Appendix for details of mechanical fixings.
Electrostatic Discharge
CAUTION
The printed circuit board (PCB) within the unit is not intended to be a removable module. Do
not remove the PCB from the unit case, since electronic components on the PCB are very
sensitive to electrostatic discharge. If it is absolutely essential to take the PCB out of the case,
do not touch the electronic components and terminals with your bare hands. Additionally,
always put the PCB in a conductive anti-static bag when storing it.
Handling Precautions
A person's normal movements can easily generate electrostatic potential of several thousand
volts. Discharge of these voltages into semiconductor devices when handling electronic
circuits can cause serious damage, which often may not be immediately apparent but the
reliability of the circuit will have been reduced.
The electronic circuits are completely safe from electrostatic discharge when housed in
the case. Do not expose them to risk of damage by removing the PCB unnecessarily.
The unit incorporates the highest practicable protection for its semiconductor devices.
However, if it becomes necessary to remove the PCB, precautions should be taken to preserve
the high reliability and long life for which the equipment has been designed and
manufactured.
CAUTION
Before removing the PCB, ensure that you are at the same electrostatic potential as the
equipment by touching the case.
Handle only the edges of the PCB. Avoid touching the electronic components, PCB surface
or connectors.
Do not pass the PCB to another person without first ensuring you are both at the same
electrostatic potential. Shaking hands achieves equipotential.
Place the PCB on an anti-static surface, or on a conducting surface which is at the same

6F2S1916 (0.5)
GIF200
-9-
potential as yourself.
Do not place the PCB in a polystyrene tray.
It is strongly recommended that detailed investigations on electronic circuitry should be
carried out in a Special Handling Area such as described in the IEC 60747.

6F2S1916 (0.5)
GIF200
-10 -
4 Commissioning and maintenance
The GIF200 unit should be commissioned in conjunction with the GRL200 IED with which it
is specified. Test personnel must be familiar with general relay testing practices and safety
precautions to avoid personal injuries or equipment damage.
Precautions
The unit is provided with a grounding terminal.
Before starting the work, always make sure the unit is grounded.
Ensure that the auxiliary supply connections are properly fixed to their terminals.
Before turning on the power, check that the polarity and voltage of the power supply are
correct.
Turn off the auxiliary supply before checking the interior of the unit.
While the power is on, do not mount/dismount the PCB.
Failure to observe any of the precautions above may cause damage or malfunction of the
unit. Refer to the preceding section for information on handling precautions.
Preparation
(i) Test equipment
The following test equipment is required for the commissioning tests.
•DC power supply.
•Calibrated voltmeter.
(ii) Visual inspection
After unpacking the product, check for any damage to the case. If there is any damage, the
internal module might also have been affected. Contact the vendor.
(iii) Unit ratings
Check that the items described on the nameplate on the front of the unit conform to the user’s
specification. The items are: unit type and model, and auxiliary DC supply voltage rating.
Commissioning Procedure
Refer to the GRL200 IED instruction manual for full details. It is necessary to commission
both ends of the protection scheme together. Ensure that all necessary communication
connections are made at each end of the protection scheme. Apply auxiliary power to both
GRL200 IEDs and to both GIF200 units. Any failure in the communication will be instructed
with the message of the GRL200 IEDs; if the user can figure out the communication is on
order, proceed with the commissioning about the GRL200 IEDs.
Maintenance
Periodic maintenance is not necessary.

6F2S1916 (0.5)
GIF200
-11 -
Appendix

6F2S1916 (0.5)
GIF200
-12 -
Outline of GIF200 unit
Note: Dimensions shown in millimeters.

6F2S1916 (0.5)
GIF200
-13 -
Technical data
Ratings
Power supply:
24Vdc - 250Vdc
(Operative range: 19.2 - 300Vdc)
Burden:
Less than 8W
ITU-T G.703 Interface
Communication interface:
ITU-T G.703 (64kbps, co-directional)
ITU-T G.703 (64kbps, contra-directional or centralized clock)
DB25 connector
C.37.94 Interface
Operative Range:
Wavelength:
Connector type:
Fibre type:
Output level:
Receiver sensitivity:
Less than 2km
820nm
ST
62.5/125m GI fibre
Mean optical power: > −19 dBm and < −11.0 dBm (62.5m)
Mean optical power: between −32 dBm and < −11 dBm
Atmospheric Environment
Temperature
Humidity
Enclosure Protection
IEC60068-2-1/2
IEC60068-2-78
IEC60529
Operating range: -10C to +55C.
Storage / Transit: -25C to +70C.
56 days at 40C and 93% relative humidity.
IP20
Functions
Functions and display
Clock
Free-running oscillation is available
LED
Power, Tx, Rx, CLK, error indicators are provided

6F2S1916 (0.5)
GIF200
-14 -
Ordering
Positions
M
N
Configurations
G
I
F
2
0
0
-
0
Electrical interface protocol
ITU-T - G703 (64kbps, co-directional)
1
ITU-T - G703 (64kbps, contra-directional or centralized clock)
2