Page 1
Installation Instructions
Optical Transceiver
1785-TR10BF
The optical transc eiver enabl es a device with a n AUI inte rface to c onnect to
a 10 Mbit/s CSMA/CD LAN (ISO/IEC 8802-3, IEEE 802.3, 10BASE-FL)
via a fiber optic cable.
•
monitoring LEDs for
– link status
– RxData
– collision/jabb er control
– TxData
– power
•
SQE test can be disabled
externally
•
can be plugged directly to the device interface
•
low current consumption
•
compact construction
To the Installer
Topic Pa ge
Description 2
Installation 3
Compliance to European Union Directives 4
Technical Da ta 7
1785-5.19 - January 1999
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2 Optical Transceiver
Description
The 1785-TR10BF mini optical transceiver can be connected to the AUI
interface of a device either directly or via an AUI cable. It is connected to
the fiber optic cable by a BFOC socket.
The 1785-TR10BF mini opti cal transc eiver of fer s these func tions ac cording
to IEEE 802.3 10BASE-FL:
•
indication via LEDs of data transmi ssion and reception through th e fiber
optic cable
•
detection of data collisions in the network and reporting them to the
terminal equipment as well as indicating them by an LED
•
ability to enable/disable the SQE test: at the end of every transmit
operation, a short collis ion signal ( heart beat) app rox. 1 µs long is sent to
monitor the electronics
•
jabber control and displa y: protect the network from data packet s that are
too long (> 70 ms)
•
link status: an IDLE signal continuously monitors the fiber optic cable
segment for breakage
Fiber Optic Interface
Jabber
Protect
Tx-Data
Idle
Generator
(acc. to 10BASE-FL)
Lowlight
Detection
Rx-Data
Tx-Packet
Detect
Rx-Packet
Detect
Collision
Detector
DISABLE
ENABLE
ENABLE/
DISABLE
SQE-Test
Generator
Collision
Osc.
Loopback
Data
Rx-Data
DO
CI
AUI Interface
(15-pin sub-D connector)
DI
1785-5.19 - January 1999
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Optical Transceiver 3
Installation
Fiber Optic Connection
Two BFOC sockets are available for connecting the 1785-TR10BF
transceiver to a fib er op tic segment. One conne ction is u sed f or t ransmitti ng
and one for receiving data over the fiber optic cable.
The maximum length of the fiber optic segment is
•
2000 m for 50/125 fiber
•
3000 m for 62.5/125 fiber
Power Supply
The operating voltage (+12 V) is taken from the connected device via the
15-pin sub-D socket of the AUI interface.
SQE Test Setting
The slide switch on the top of the transceiver case is used to activate and
deactivate the SQE test. Before placing the transceiver in ope ration, you
should check to see whether the connected device requires the SQE test to
be on or off. As deli vered from the factory, the SQE test is on.
Connecting two devices
Connecting to
a fiber optic interface hub
Connecting Devices
1785-TR10BF 1785-TR10BF
Fiber optic cable 2000 meters (50/125 microns)
3000 meters (62.5/125 microns) max.
Fiber optic cable 2000 meters (50/125 microns)
3000 meters (62.5/125 microns) max.
Hub
PC
1785-TR10BF 1785-TR10BF
For Additional Information
For standards information, go to
copy of this publication, go to
PLC5E
PLC5E
http://www.ieee.or g/. To download a .PDF
http://www.theautomationbookstore.com/.
1785-5.19 - January 1999
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4 Optical Transceiver
Compliance to European Union Directives
If this product has the marking, it is approved for installation within the
European Union and EEA regions. It has been designed and tested to meet
the following directives.
EMC Directive
This product is tested to meet Council Directive 89/336/EEC
Electromagnetic Compatibility (EMC) and the following standards, in
whole or in part, documented in a technical construction file:
•
EN 50081-2 EMC - Generic Emission Standard,
Part 2 - Industrial Environment
•
EN 50082-2 EMC - Generic Immunity Standard,
Part 2 - Industrial Environment
This product is intended for use in an industrial environment.
Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC Low Voltage,
by applying the safe ty req uir ements of EN 609 50 - In form ation Technology
Equipment.
For specific informat ion requi red by EN 60950 , see the ap propriat e section s
in this publication, as well as the followin g Allen-Bradley publication s:
•
Industrial Automation Wiring and Grounding Guidelines for Noise
Immunity, publication 1770-4.1
•
Automation Systems Catalog, publication B111
1785-5.19 - January 1999
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Optical Transceiver 5
Hazardous Location Approval
This product may be certified for general use as well as for use in hazardous locations. Actual agency
certification is indicated by the product label as shown below, and not by statements in any user
documentation.
Example of the certification product label:
CL I, DIV 2
GP A,B,C,D
TEMP
To comply with certification for use in hazardous locations, the following information becomes a part of the
product literature for this certified industrial control product.
• This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D, or non-hazardous locations only.
• The products having the appropriate markings (that is, Class I, Division 2, Groups A, B, C, D) are certified for
use in other equipment where the suitability of combination (that is, application or use) is determined by the
local authority having jurisdiction.
Important: Due to the modular nature of a programmable control system, the product with the highest
temperature rating determines the overall temperature code rating of a programmable control system in a Class I,
Division 2, location. The temperature code rating is marked on the product label as shown.
Temperature code rating:
CL I, DIV 2
GP A,B,C,D
TEMP
/RRNIRUWHPSHUDWXUH
FRGHUDWLQJKHUH
The following warnings apply to products having certification for use in hazardous locations.
ATTENTION: Explosion hazard -
• Substitution of components may impair suitability for Class I, Division 2.
!
• Do not replace components unless power has been switched off or the area is known to be
non-hazardous.
• Do not disconnect equipment unless power has been switched off or the area is known to be
non-hazardous.
• Do not disconnect connectors unless power has been switched off or the area is known to be
non-hazardous. Secure any user-supplied connectors that mate to external circuits on this
equipment by using screws, sliding latches, threaded connectors, or other means such that
any connection can withstand a 15 Newton (3.4 lb.) separating force applied for a minimum of
one minute.
1785-5.19 - January 1999
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6 Optical Transceiver
Approbation d’utilisation en environnements dangereux
Ce produit est certifié pour une utilisation générale aussi bien que pour une utilisation en environnements
dangereux. La certification en vigueur est indiquée par l'étiquette produit et non par des indications dans la
documentation utilisateur.
Exemple d'étiquette de certification d'un produit :
Pour satisfaire à la certification en environnements dangereux, les informations suivantes font partie intégrante de
la documentation des produits de commande industrielle certifiés.
• Cet équipement ne convient qu’à une utilisation en environnements de Classe 1, Division 2, Groupes A, B, C, D,
• Les produits portant le marquage approprié (c'est-à-dire, Classe 1, Division 2, Groupes A, B, C, D) sont
CL I, DIV 2
GP A,B,C,D
TEMP
ou non dangereux.
certifiés pour une utilisation avec d'autres équipements, les combinaisons d’applications et d’utilisation étant
déterminées par le bureau local d'inspection qualifié.
Important : De par la nature modulaire des systèmes de commande programmables, le produit ayant le code de
température le plus élevé détermine le code de température global du système dans un environnement de
Classe 1, Division 2. Le code de température est indiqué sur l'étiquette produit.
Code de température
:
CL I, DIV 2
GP A,B,C,D
TEMP
Le code de température
est indiqué ici
Les avertissements suivants s'appliquent aux produits certifiés pour une utilisation en environnements dangereux.
DANGER : Risque d’explosion
• La substitution de composants peut rendre cet équipement inadapté à une utilisation en
!
environnement de Classe 1, Division 2.
• Couper le courant ou s’assurer que l’environnement est classé non dangereux avant de
remplacer des composants.
• Couper le courant ou s’assurer que l’environnement est classé non dangereux avant de
débrancher l’équipement.
• Couper le courant ou s’assurer que l’environnement est classé non dangereux avant de
débrancher les connecteurs. Fixer tous les connecteurs fournis par l’utilisateur pour se
brancher aux circuits externes de cet équipement à l’aide de vis, loquets coulissants,
connecteurs filetés ou autres, de sorte que les connexions résistent à une force de séparation
de 15 newtons (1,5 kg - 3,4 lb) appliquée pendant au moins une minute.
1785-5.19 - January 1999
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Optical Transceiver 7
Technical Data
Transceiver interface (AUI)
Operating voltage +12 V
Current consumption (no signal) 200 mA
Bit rate (Manchester Code) 10 Mbit/s
Dimensions W x H x D 44 mm x 22 mm x 91 mm (1.8 in. x .83 in. x 3.6 in.)
Weight 130 g
Ambient temperature 0° C to +50° C
Storage temperature –20° C to +80° C
Relative humidity 10 % to 90 % (non-condensing)
Fiber optic interface: Transmitter
Light source LED
Wave length 820 nm
Minimum peak optical power [in dBm/µW] fed
into the fiber optic cable
50/125
62.5/125
Fiber type gradient
IDLE-Signal 1 MHz ± 10%
Preamble loss transmit typ. 1 bit; max. 2 bit
Steady state delay 20 ns
Jabber protect time out 70 ms
Jabber reset 450 ms
Fiber optic interface: Receiver
Photo detector PIN diode
Optical input power > –31 dBm (0.8 µW)
Bit error rate (1µW)
Low light threshold –30 dBm (1 µW)
Saturation limit ≥ –9 dBm
Preamble loss receive typ. 1 bit; max. 3 bit
Steady state delay 20 ns
Collision detection time (Data in → SQE out) max. 350 ns
Input:
Termination resistor
Sensitivity
Maximum DC component
Output:
Output voltage
(data and CD signal)
CD signal frequency
SQE Test (heartbeat)
delay time
length
AUI cable length
–19/ 12.6
–16/ 25
9
–
< 10
78 Ω ±1%
500 mVPP
± 50 V
1,6 VPP
10 MHz ± 10%
can be disabled
1100 ns
1000 ns
0 to 50 m max.
1785-5.19 - January 1999
Page 8
Connection capabilities
LINK
RX
CD
TX
P
Transceiver interface
Fiber optic interface
Connections with pin assignments
Transceiver interface
(15-pin sub-D plug)
Fiber optic interface
Displays
Conductors/Wire Size/Category
Agency Certification
(when product is marked)
plugged directly on to the AUI interface of connected device
or connected by an AUI cable (50 m max. length)
Fiber optic cable segment maximum
2000 m (50/125 microns) or 3000 m (62.5/125 microns) long
Input:DO-A: pin 3; DO-B: pin 10
Output:DI-A: pin 5; DI-B: pin 12
Collision detect:CI-A: pin 2; CI-B: pin 9
Power:GND: pin 6; +12 V: pin 13
Shielding:pin 1, 4, 8, 11, 14
2 x IEC 874-10 BFOC/2.5 sockets
* green LED: LINK (link status)
on - fiber optic connection OK
* yellow LED: RX (Rx data)
on - data being received over fiber optic cable link
* red LED: CD (collision detect)
brief flash – data collision
continuously on – jabber control active
* yellow LED: TX (Tx data)
on - data being transmitted through fiber optic cable link
* green LED: P (power)
on – supply voltage present
Category 1
CUS
1
• Information Technology Equipment
• Industrial Control Equipment
• Class I, Div. 2, Groups A, B. C, D
Hazardous Location
• EN 50082-1, 2
• EN 55022, Radiated Emission Class B
• EN 60950
FCC Part 15, SubPart B
1
Refer to the Industrial Automation Wiring and Grounding Guidelines for Noise Immunity, publication 1770-4.1.
Publication 1785-5.19 - January 1999 PN 955134-73
Copyright 1999 of Rockwell International Corporation. Printed in the U.S.A.
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