Toshiba ASC25 Instruction Manual
6 F 3 B 0 3 6 0
TOSLINE-S20
Active Star Coupler(ASC25)
Instruction Manual
• Keep this instruction manual where it can be easily
referred to by users and those responsible for the
equipment.
• Read this instruction manual carefully before using the
equipment.
• After this instruction manual has been read, keep it
beside the equipment.
Sep
REQUIREMENTS
TOSLINE-S20 Active Star Coupler (ASC25) Instruction Manual 6F3B0360
TOSLINE S20 1
Table of Contents
1. Introduction ...............................................................................................................3
2. Overview ...................................................................................................................5
3. System Configurations..............................................................................................7
4. Outline of Functions..................................................................................................9
5. Specifications..........................................................................................................11
6. Hardware.................................................................................................................13
6.1 Product construction...................................................................................13
6.2 External dimensions...................................................................................13
6.3 Component identification............................................................................14
6.4 Function setting switch...............................................................................15
6.5 LED display.................................................................................................17
6.6 Optical connector........................................................................................18
6.7 Terminal block.............................................................................................19
6.8 Fuse holder.................................................................................................20
7. Start up and Power down methods.........................................................................21
7.1 Start up method..........................................................................................21
7.2 Power down method...................................................................................21
8. Precautions on using Active Star Coupler..............................................................23
9. Installation and Wiring.............................................................................................25
9.1 Method for mounting the main unit.............................................................25
9.2 Connection of optical fiber cables (cords)..................................................27
9.3 Optical parts................................................................................................28
9.4 Precautions on handling optical fiber and optical connector......................30
9.5 Method of optical connector assembly.......................................................32
9.6 Procedure of design for laying optical fiber cables ....................................36
2 ASC25 Instruction Manual
9.7 Precautions on ordering cables/cords........................................................38
9.8 Precautions on laying cables......................................................................39
TOSLINE-S20 Active Star Coupler (ASC25) Instruction Manual 6F3B0360
TOSLINE S20 3
1. Introduction
The brochure is an instruction manual for Active Star Coupler (ASC25) which is a
modified version of general use Active Star Coupler (ASC22). The Active Star Coupler (ASC25)
is specially designed to connect TOSLINE-S20 data communication network with a station
provided with F07 Type Optical Connector, such as TOSVERT-µ/S250W/W Drive Station.
Instruciton manuals for other TOSLINE-S20 components are listed below. System
designers, device designers, and maintenance personnel using a TOSLINE-S20 network should
refer to these manuals for information about how these components can be used in a TOSLINES20 network.
• T2/T3 stations 6F3B0354
• SIF (Serial Interface) station 6F3B0352
• VME Bus station 6F3B0353
• Loader software S-LS 6F3B0351
• PLC-5 station 6F3B0355
• Loader software S-LS (for windows) 6F3B0357
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TOSLINE-S20 Active Star Coupler (ASC25) Instruction Manual 6F3B0360
TOSLINE S20 5
2. Overview
The Active Star Coupler is used for distributing fiber optic signals in a TOSLINE-S20
network.
The TOSLINE-S20 is a Bus-style transmission system. If the power is off in one of the
stations on this bus, communication is not possible before or after that station.
To prevent this from happening, an Active Star Coupler can be used.
If the Active Star Coupler is used, a station that is off will have no effect on the rest of the
transmission system. The Optical Connector Board of the Active Star Coupler has ten ports (CH1
through CH10), in which CH1 and CH10 adopt FC Type connector same to the general version of
Active Star Coupler (ASC22). Other ports, CH2 through CH9, adopt the JIS-F07 Type
connectors which are mounted to TOSVERT-µ/S250W/W drive station, etc.
Appearance of the Active Star Coupler is shown below.
Figure 2.1
6 ASC25 Instruction Manual
TOSLINE-S20 Active Star Coupler (ASC25) Instruction Manual 6F3B0360
TOSLINE S20 7
3. System Configurations
Adoption of the Active Star Coupler provides a system configuration illustrated below.
(1) Basic configuration
The maximum applicable number of F01 (FC) Type
connector stations is two.
The maximum applicable number of F07 Type
connector stations is eight.
F01: F01 (FC) Type station
F07: F07 Type station
Figure 3.1
(2) Active Star Coupler daisy-shain connection
The maximum applicable
number of ASCs in daisychain connection is nine.
Figure 3.2
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TOSLINE-S20 Active Star Coupler (ASC25) Instruction Manual 6F3B0360
TOSLINE S20 9
4. Outline of Functions
(1) Basic functions
When the Active Star Coupler receives a signal from one channel among ten of them, it
tramsmits this signal (unchanged) from its remaining nine ports.
The drawing given below illustrates the case that data input from Port 1, and the data are
output from ports 2 through 10.
Data entered from Port 1
Data generated to Ports 2 through 10
Figure 4.1
(2) Function of preventive measures to single-wire breaking
The function is effective to CH1 and CH10. Able/Disable of the function is selected by a
switch.
In the case that the function is brought into "Able" mode, the transmission on TX side is
stopped about 400 ms after the detection of wire breaking at RX side.
* On using the function, refer to 8.(1) "Precautions on the Preventive Measures to Single-Wire
Breaking".
(3) Function of status display
Since the conditions of power source and of transmission are confirmed by the turning
ON/OFF of the respective LEDs, the function is useful in case of accident occurrence.
For detail of the display, refer to 6.5 "LED Display".
(4) Function of optical level identification
Manipulation of switch makes the optical module output continuously illuminate. The
function is useful to check the optical level at terminals during the cable laying work.
For detail of the switch setting, refer to "6.4 Function setting switches".
(5) Function of automatic test operation
The function is used in quality control in the production and test processes. During
normal operation, turn the switch to "OFF" position.
For detail of switch setting, refer to "6.4 Function setting switches".
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TOSLINE-S20 Active Star Coupler (ASC25) Instruction Manual 6F3B0360
TOSLINE S20 11
5. Specifications
The section describes the specifications of the Active Star Coupler.
(1) General specifications
General specifications of Active Star Coupler are given below.
Item Specification
Rating 100/110 V AC, 50/60 Hz
200/220 V AC, 50/60 Hz
Voltage
Fluctuation range 85 to 132 V AC, 47 to 66 Hz
170 to 250 V AC, 47 to 66 Hz
Power consumption about 10 VA
Retentive power interruption Resuming to normal operation within 10 ms
Insulation rating 1500 V AC for 1 minute
Power
Supply
Fuse rating 250V-3A
Operating
temperature
0 to +55°C (unit ambient temperature)Temperature
Storage
temperature
−20 to +75°C (unit ambient temperature)
Humidity 20 to 90% RH, no condensation
Vibration Conforming to JIS C0911
• Power OFF, Frequency 16.7 Hz, Displacement 3 mm
Atmosphere Free from corrosive gas
Dust Not more than 1 mg/m
3
Environment
Ground Grounding resistance 100Ω or less
External dimensions 390 (W) × 200 (D) × 70 (H) mm
Weight approximately 3.0 kg
Cooling Natural air cooling
Installation position
Horizontal (unacceptable of upside down or vertical
position)
Table 5.1
12 ASC25 Instruction Manual
(2) Functional specifications
The functional specifications of the Active Star Coupler are listed below.
Item Description
Number of connectable
stations
Max. 10
for FC Type
connector
Silica glass optical fiber cable (JIS C6820)
GI 50/125 µm (core dia./clad dia.)
Applied optical fiber
for F07 Type
connector
H-PCF (hard clad silica glass core fiber) cable
SI Model 200/230µm (core dia./clad dia.)
Transmission distance
Station to Star Coupler : Max. 1 km
Star Coupler to Star Coupler : Max. 1 km
Total system : Max. 10 km
Number of daisy-chain
connection of Star
Couplers
Max. 9
Connectable apparatus TOSLINE-S20 fiber optic network stations.
HEALTHY contact (Relay
contact)
"ON" during normal operation
Contact rating
Voltage: 250 V AC Current: max. 1 A
Voltage: 24 V DC Current: max. 1 A
Voltage: 5 V AC/DC Current: min. 10 mA
Table 5.2
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