Download INSTRUCTION MANUAL OPTICAL INTERFACE UNIT (CROSS

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INSTRUCTION MANUAL
OPTICAL INTERFACE UNIT
(CROSS-SITE FIBRE LINK UNIT)
G1IF1
© TOSHIBA Corporation 2002
All Rights Reserved.
( Ver. 0.6 )
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Safety Precautions
Before using this product, please read this chapter carefully.
This chapter describes the safety precautions recommended when using the optical interface unit
type G1IF1. 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 two kinds of CAUTION, will be followed by
important safety information that must be carefully reviewed.
DANGER
Indicates an imminently hazardous situation which will result in death or
serious injury if you do not follow the instructions.
WARNING
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.
CAUTION
Indicates a potentially hazardous situation which if not avoided, may result in
property damage.
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WARNING
• 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.
• Fibre optic
When connecting this equipment via an optical fibre, do not look directly at the optical signal.
CAUTION
• Earth
The earthing terminal of the equipment must be securely earthed.
CAUTION
• Operating environment
The equipment must only 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 the DC power supply to the equipment, check that they conform to the
equipment ratings.
• 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.
• Disposal
When disposing of this equipment, do so in a safe manner according to local regulations.
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Contents
Safety Precautions
1
1.
Introduction
4
2.
Application
4
3.
Description
5
3.1
3.2
3.3
3.4
4.
5.
General Description
Electrical Connections
Indications
Response during Communication Fail
5
6
10
10
Installation
11
4.1
4.2
4.3
4.4
4.5
Receipt of Relays
Mounting
Electrostatic Discharge
Handling Precautions
External Connections
11
11
11
11
12
Commissioning and Maintenance
13
5.1
5.2
5.3
5.4
5.5
13
13
13
14
14
General
Precautions
Preparation
Commissioning Procedure
Maintenance
Appendix A Outline of Optical Interface Unit
15
Appendix B Technical Data
19
„ The data given in this manual are subject to change without notice. (Ver. 0.6)
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1. Introduction
The Optical interface unit G1IF1 facilitates connection of the fibre optic protection signalling
channel of the GRL100 line differential relay to remote multiplexing equipment associated with a
switched telecommunications network. This manual should be used in conjunction with the
manual for the GRL100 relay.
Table 1 G1IF1 Models
Model
Telecommunication
Outer case
G1IF1-01∗∗
X.21
With outer case
G1IF1-02∗∗
CCITT-G703-1.2.1
Option(*)
G1IF1-03∗∗
CCITT-G703-1.2.2 or -1.2.3
Option(*)
G1IF1-04∗∗
X.21
Option(*)
(*): If the outer case is required, it is ordered separately as option. See Appendix C.
2. Application
The Optical interface unit G1IF1 provides a connection between a fibre optic communications
channel and a switched telecommunications network. It is applied in the protection signalling
channel of the GRL100 line differential relay, allowing two GRL100 relays to communicate over
a telecommunications channel.
The G1IF1 provides an interface for connection of the fibre optic protection signalling port of the
GRL100 relay to remote multiplexing equipment having a standard CCITT G703 or X.21 type
interface to the electrical connections of a telecommunications system. Figure 2.1 illustrates the
application of the G1IF1 unit.
GRL100
Line
Diff.
Relay
Switched
Telecomms
Muliplexer
G1IF1
CCITT G703
or X.21
Interface
Fibre
Optic
Cable
Figure 2.1
Application of G1IF1 Unit
In most situations the telecommunications equipment is remote from the protection equipment in
the substation. The G1IF1 unit is normally located close to the multiplexer and may be up to 2km
away from the GRL100 relay. The fibre optic cable must be either 50/125µm (for distances up to
1km) or 62.5/125µm (for distances up to 2km) and should be terminated with standard ST type
connectors.
The G1IF1 is connected to the switched telecommunications network via a multiplexer. The
interface is defined according to the CCITT G703 or X.21 standard. The connections should be
made using shielded, twisted pair cable.
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3. Description
3.1
General Description
Figure 3.1 illustrates the operation of the Optical interface unit. The GRL100 relay and the
telecommunications multiplexer are illustrated to facilitate the explanation.
The G1IF1 unit provides three fibre optic connectors. The transmitter / receiver pair TX/RX
connect to the GRL protection signalling channel. The clock transmitter CLK can be used to
transmit the CCITT-G703-1.2.3(1.2.2) or X.21 timing signal, although it is not required in
applications such as this, where the receive signal from the G703-1.2.3(1.2.2) or X.21 is
synchronized to the clock signal. The CLK is not used for the CCITT-G703-1.2.1 interface. An
additional connection point, labelled SPARE (not shown in Figure 3.1), can be used for fitting of
a spare fibre optic cable.
Optical to electrical and electrical to optical conversion is performed on the transmit and receive
signals from the GRL100 relay respectively. CMI type encoding is used for the optical signals.
CMI encoding always results in a 50% duty factor, making the signals easy to check during
commissioning.
Code conversion is performed for connection to the CCITT-G703 or X.21 interface. G703 or
X.21 is a synchronous interface, and provides a 64kHz timing signal, which the G1IF1 uses for
synchronisation. The connections to the G703 or X.21 interface use balanced drivers and
receivers in accordance with the G703 or RS422A/V.11 standard.
50/125µm
62.5/125µm
Fibre
GRL100
Serial
Comms
Interface
E/O
G1IF1
O/E
TX
RX
Telecomms
Muliplexer
Code
Conversion
64kHz
Sync.
E/O
CLK
O/E
Sync.
CLK
E/O
O/E
RX
(∗)
TX
Code
Conversion
CCITT G703
Cable
Auxiliary DC +
Supply
-
DC/DC
Converter
Figure 3.1
(∗): not required for CCITT G703 1.2.1.
Operation of G1IF1 Unit
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3.2
Electrical Connections
A 12-way ring terminal, connector TB1 of G1IF1 provides connections for the auxiliary dc
supply as well as test points for the telecommunications channel. The G1IF1-01 provides the
additional X.21 connector is a 15-way DIN type.
The G1IF1 auxiliary dc supply input has a nominal 48V rating as standard for communications
equipment. However the G1IF1 can also be provided with dc 110/125V rating or dc 220/250V
rating for 110/125V or 220/250V substation battery supplies.
The connections to the G1IF1-01 are shown in Figure 3.2 (a), not including the test points. The
figure also illustrates the functions of three removable links. The X.21 interface circuit is
designed for 500V isolation against the rest of the system. However, it may not be desirable to
leave the common connection floating, particularly where high levels of interference are
expected. Therefore the X.21 common can be tied via a 10kΩ resistance to the frame ground, by
fitting link J1. Alternatively, the fitting of links JIG and JFG connects the X.21 common directly
to the frame ground.
It is recommended that a shielded cable be used for the X.21 interface. The shield should be tied
directly to the frame ground by the fitting of link JFG.
Code
RX
Conversion
O/E
GRL100 Relay
Fibre-optic cable
I
S
O
L
A
T
I
O
N
Code
TX
E/O
Conversion
A
2
B
9
A
４
B
CLK
E/O
11
A
6
B
13
TX
RX
Communication
equipment
(X.21 interface
:D-sub 15pin)
CLK
J1
8
Power on
JIG
R
1
Data from COM
FG
Data from Relay
JFG
TB1-1
CG
SG
FG
FG
CLK from COM
+5V
+
ＤＣ／ＤＣ
0V
-
TB1-2
P
TB1-3
N
LG
Figure 3.2 (a)
Connection Diagram for G1IF1-01 and G1IF1-04
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Figure 3.2 (b) shows the connections for G1IF1-02 and -03.
Code
TB1- 6
Conversion
TB1- 7
RX
O/E
GRL100 Relay
Fibre-optic cable
TB1-8
Code
TX
E/O
TX
TB1-9
Conversion
CLK
RX
Communication
equipment
TB1-10
E/O
TB1-11
CLK
G703 1.2.3(1.2.2)
I/F only
Power on
TB1-1
FG TB1-12
TX from COM
TX from RELAY
+5V
+
ＤＣ／ＤＣ
0V
CLK from COM
-
FG1
FG2
TB1-2
P
TB1-3
N
LG
Figure 3.2 (b) Connection Diagram for G1IF1-02 and G1IF1-03
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Figure 3.3 shows the signal definitions for the G703 or X.21 connection, note that a number of the
signals specified for the standard are not required for this application. Table 3.1 specifies all
electrical connections to the G1IF1 unit.
G1IF1-01
Telecommunications
Multiplexer
Shield Ground SG 1
Ta 2
Transmit
Tb 9
3
10
Receive
Signal
Timing
Ra 4
Rb 11
5
12
Sa 6
Sb 13
7
14
Common Ground
8
15
(a) Signal Definitions for G1IF1-01 (X.21) Interface
G1IF1-02, 03
Telecommunications
Multiplexer
Shield Ground FG 1
Ta 6
Transmit
Tb 7
Receive
Ra 8
Rb 9
Signal
Timing
Sa 10
Sb 11
(G703 1.2.3, 1.2.2 I/F only)
(b) Signal Definitions for G1IF1-02 and -03 (G703) Interface
Figure 3.3 Signal Definitions
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Table 3.1 Electrical Connections
(a) Electrical Connections to the G1IF1-01 and -04 (X.21)
Circuit
Transmit
Timing
Receive
Signal
Signal
Terminal Numbers
Name
Type
TB1
X.21
Ta
V.11/RS422
6
2
Tb
V.11/RS422
7
9
Sa
V.11/RS422
10
6
Sb
V.11/RS422
11
13
Ra
V.11/RS422
8
4
Rb
V.11/RS422
9
11
2
-
3
-
Power
P
Supply
N
Ground/
FG
Frame Ground
1
-
Common
LG
Internal Common
-
-
SG
Shield Ground
-
1
CG
Common Ground
12
8
48V dc
(b) Electrical Connections to the G1IF1-02 and -03 (G703)
Circuit
Transmit
Timing
Receive
Signal
Signal
Terminal Numbers
Name
Type
Ta
CCITT G703
6
Tb
CCITT G703
7
Sa
CCITT G703
10
Sb
CCITT G703
11
Ra
CCITT G703
8
Rb
CCITT G703
9
TB1
Power
P
Supply
N
Ground/
FG1
Frame Ground
1
Common
LG
Internal Common
-
FG2
Shield Ground
CG
Common Ground
DC rated voltage
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2
3
12
-
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3.3
Indications
The G1IF1 unit provides four light emitting diodes (LEDs) for indication purposes. Table 3.2
details the labels, colours and functions associated with each LED.
Table 3.2 Indication LEDs
3.4
LED Label
Colour
Function
Power
Green
Lit when auxiliary dc power is present
TX from COM
Yellow
Indicates data transmission from the telecommunications channel to the
GRL100 relay
TX from RELAY
Yellow
Indicates data transmission from the GRL100 relay to the
telecommunications channel
CLK from COM
Yellow
Indicates the timing signal from the G703 or X.21 interface.
Response during Communication Fail
(1) When the data transmission from telecommunication multiplexer to G1IF1 is stopped:
The LED “TX from COM” turns off and the data “0” is transmitted to the relay. At that time,
the relay at local terminal detects a communication failure.
(2) When the data transmission on fibre optic interface from the relay to G1IF1 is stopped:
The LED “TX from RELAY” turns off and the send signal (the voltage between terminals
TB1-6 and TB1-7) becomes “0V”. “0V” means undefined data in G703-1.2.1 and means “0”
data in G703-1.2.2 / 1.2.3.
(3) When the timing signal from telecommunication multiplexer to G1IF1 is stopped:
The LED “CLK from COM” turns off and the data transmission on fibre optic interface from
G1IF1 to the relay is stopped. The data transmission to telecommunication multiplexer is
continued. The relay at the remote terminal detects a communication failure intermittently
because the bit synchronising between the relay at the local terminal and telecommunication
multiplexer.
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4. Installation
4.1
Receipt of Relays
On receiving the G1IF1, 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.
4.2
Mounting
Refer to Appendix A for details of mechanical fixings.
4.3
Electrostatic Discharge
CAUTION
The printed circuit board (PCB) within the G1IF1 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.
4.4
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
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.
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4.5
External Connections
External connections to the G1IF1 are shown in section 3.2. There are three types of connection
to the unit.
The fibre optic connections are made with standard ST type connectors. Transmitters are of the
LED type. When handling fibre optic cables, care should be taken so as not to cause damage by
rough treatment or by exceeding the minimum bend radius of the fibre.
The CCITT G703 interface connection is made with a ring terminal block labeled TB1. The X.21
interface connection is made with a standard 15-way DIN type connector.
The power supply and safety earth connections should be made with ring-type crimp terminals to
the terminal block TB1.
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5. Commissioning and Maintenance
5.1
General
The G1IF1 should be commissioned in conjunction with the GRL100 relay 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.
5.2
Precautions
CAUTION
• 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 section 4.4 for information on handling precautions.
5.3
Preparation
Test equipment
The following test equipment is required for the commissioning tests.
• DC power supply.
• Calibrated voltmeter.
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.
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.
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5.4
Commissioning Procedure
The G1IF1 should be commissioned in conjunction with the GRL100 relay with which it is
specified. Refer to the GRL100 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 GRL100 relays and to both G1IF1 units. Any failure in
communication will be indicated by the GRL100 relays. If communication is healthy then
proceed with commissioning of the GRL100 relays.
5.5
Maintenance
Periodic maintenance is not necessary.
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Appendix A
Outline of Optical Interface Unit
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Dimensions and Connections
2- Φ5
ＴＢ１
ＴＯＳＨＩＢＡ
1
130
195
Power
TX from COM
TX from RELAY
CLK from COM
12
2-5×9
168
180
156
SPARE
RX
TX
CLK
X.21
66
For G1IF1-01∗∗, and
G1IF1-04∗∗ only
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Outer Case Dimensions for G1IF1-01∗∗
4-Φ6
346
326
300
266
CROSS SITE FIBRE LINK UNIT
166
200
226
246
87
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Outer Case Dimensions for G1RK7-0102 and -0103 (Option)
4-Φ6
346
326
300
266
OPTICAL INTERFACE UNIT
166
200
226
246
87
For G1RK7-0103 only
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Appendix B
Technical Data
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TECHNICAL DATA
Ratings
DC power supply:
48Vdc
110Vdc/125Vdc
220Vdc/250Vdc
(Normal range: -20% to +10% of rated voltage,
superimposed AC voltage ≤ 12%, break in supply
duration ≤ 20ms)
Burden: less than 8W
Optical Interface
Operative Range:
<1km with 50/125µm GI fibre (3dB/km)
<2km with 62.5/125µm GI fibre (3dB/km)
Wavelength:
820nm
Connector Type:
ST
Fibre Type:
50/125µm or 62.5/125µm glass fibre
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Environmental Performance Claims for G1IF1
Test
Standards
Details
Atmospheric Environment
Temperature
IEC60068-2-1/2
Operating range: -10°C to +55°C.
Storage / Transit: -25°C to +70°C.
Humidity
IEC60068-2-3
56 days at 40°C and 93% relative humidity.
Enclosure Protection
IEC60529
IP50 (Dust Proof) for G1IF1 with outer case
IP40 (excluding terminal parts) for G1IF1 without outer case
Mechanical Environment
Vibration
IEC60255-21-1
Response - Class 1
Endurance - Class 1
Shock and Bump
IEC60255-21-2
Shock Response Class 1
Shock Withstand Class 1
Bump Class 1
Seismic
IEC60255-21-3
Class 1
High Voltage Environment
Dielectric Withstand
IEC60255-5
2kVrms for 1 minute between PSU terminals and earth.
500Vrms for 1 minute between X.21 interface terminals and earth.
High Voltage Impulse
IEC60255-5
Three positive and three negative impulses of 5kV(peak),
1.2/50µs, 0.5J between all terminals and between all terminals
and earth.
Electromagnetic Environment
High Frequency
Disturbance /
IEC60255-22-1 Class 3
1MHz 2.5kV applied to PSU terminals in common mode.
1MHz 1.0kV applied to PSU terminals in differential mode.
0.1MHz 2.5kV applied to PSU terminals in common mode.
0.1MHz 1.0kV applied to PSU terminals in differential mode.
Damped Oscillatory
Wave
IEC61000-4-12,
EN61000-4-12 Class 3
Electrostatic
Discharge
IEC60255-22-2 Class 4
8kV contact discharge.
15kV air discharge.
Radiated RF
Electromagnetic
Disturbance
IEC60255-22-3 Class 3
Field strength 10V/m for frequency sweeps of 80MHz to 1GHz and
1.7GHz to 2.2GHz. Additional spot tests at 80, 160, 450, 900 and
1890Mhz.
Fast Transient
Disturbance
IEC60255-22-4 Class 4
4kV, 2.5kHz, 5/50ns applied to PSU inputs.
2kV, 5kHz, 5/50ns applied to G703 or X.21 interface terminals.
Conducted RF
Electromagnetic
Disturbance
IEC60255-22-6 Class 3
10Vrms applied over frequency range 150kHz to 100Mhz.
Additional spot tests at 27 and 68MHz.
Conducted
Disturbance over freq.
Range 15Hz to
150kHz
IEC61000-4-16,
EN61000-4-16, Class 3
Varying voltages applied in common mode as follows:
15Hz to 150Hz: 10V → 1Vrms (20dB/decade)
150Hz to 1.5kHz: 1Vrms
1.5kHz to 15kHz: 1 → 10Vrms (20dB/decade)
15kHz to 150kHz: 10Vrms
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Power Frequency
Disturbance
IEC60255-22-7
300V 50Hz for 10s applied to PSU terminals in common mode.
Surge Immunity
IEC61000-4-5,
EN61000-4-5
1.2/50µs surge applied to PSU terminals in common/differential
modes: 2kV/1kV (peak)
Conducted and
Radiated Emissions
EN55022 Class A
Conducted emissions:
0.15 to 0.50MHz: <79dB (peak) or <66dB (mean)
0.50 to 30MHz: <73dB (peak) or <60dB (mean)
Radiated emissions:
30 to 230MHz: <30dB
230 to 1000MHz: <37dB
Power Frequency
Magnetic Field
IEC61000-4-8,
EN61000-4-8, Class 4
Field applied at 50Hz with strengths of:
30A/m continuously,
300A/m for 1 second.
Pulsed Magnetic Field
IEC61000-4-9,
EN61000-4-9, Class 5
6.4/16µs magnetic pulses (positive and negative) applied with
magnitude 1000A/m.
Damped Oscillatory
Magnetic Field
IEC61000-4-10,
EN61000-4-10, Class 5
Oscillation frequencies of 0.1MHz and 1MHz applied with
magnitude 100A/m.
European Commission Directives
89/336/EEC
Compliance with the European Commission Electromagnetic
Compatibility Directive is demonstrated according to generic EMC
standards EN50081-2 and EN50082-2.
73/23/EEC
Compliance with the European Commission Low Voltage Directive
is demonstrated according to generic safety standards EN61010-1
and EN60950.
R&TTE 1999/5/EC
Complies with the European Commission Directive on Radio and
Telecommunication Equipment.
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Appendix C
Ordering
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Optical Interface Unit
G1IF1
−
Type:
Optical interface unit
G1IF1
Model:
For
For
For
For
X21 with outer case
CCITT-G703-1.2.1
CCITT-G703-1.2.2 or 1.2.3
X21
01
02
03
04
DC auxiliary power supply:
DC 48V/54V/60V
DC 110V/125V
DC 220V/250V
01
02
03
Outer Case (Option)
G1RK7
Type:
Outer case for Optical interface unit
G1RK7
Model:
For G1IF1-02∗∗ and G1IF1-03∗∗
For G1IF1-04∗∗
0102
0103
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−
−
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Version-up Records
Version
No.
Date
Revised Section
Contents
0.0
Jul. 16, 2002
--
First issue.
0.1
Oct. 25, 2002
3.2
3.3
Modified Figure 3.2, 3.3 and Table 3.1.
Modified Table 3.2
0.2
Jan. 17, 2003
3.2
Added the descriptions of “dc 125V” and “dc 250V” and modified Table 3.1.
0.3
Sep. 22, 2004
3.4
Added the Section 3.4.
0.4
Feb. 09, 2006
1 to 4
Appendices
Modified the description and figures. (Added G1IF1-01.)
Modified Appendix A and B, and added Appendix C.
0.5
Jul. 6, 2006
1
Appendices
Modified Table 1.
Modified Appendix A, B and C.
0.6
Nov. 30, 2007
Appendices
Modified Appendix A. (P17)
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