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FEBRUARY 1998
ME540A-ST
ME540A-SM
FOM Line Driver—ST
FOM Line Driver—SM
CUSTOMER
Order
toll-free
in the U.S.: Call
877-877-BBOX
(outside U.S. call
724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call
724-746-5500
or fax
724-746-0746
SUPPORT
Black Box Corporation
Mailing address:
, 1000 Park Drive, Lawrence, PA 15055-1018
INFORMATION
www.blackbox.com
info@blackbox.com
Web site:
• E-mail:
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Table of Contents
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Summary of Contents for Black Box ME540A-ST
- Page 1 (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 SUPPORT Black Box Corporation Mailing address: , 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION www.blackbox.com info@blackbox.com Web site: • E-mail:...
- Page 2 FEDERAL COMMUNICATIONS COMMISSION CANADIAN DEPARTMENT OF COMMUNICATIONS RADIO FREQUENCY INTERFERENCE STATEMENTS This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of the Canadian Department of Communications. Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de classe A prescrites dans le Règlement sur le brouillage radioélectrique publié...
- Page 3 FOM LINE DRIVER—ST AND S M Contents Chapter Page...
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Page 4: Specifications
FOM LINE DRIVER—ST AND S M 1. Specifications Protocol — Speed — Maximum Distance — Operation — No. of Drops Supported — Interface — Connectors — Indicators — User Controls — Link Budget — Fiber Launch Power — Receiver Sensitivity — Wavelength —... - Page 5 FOM LINE DRIVER—ST AND S M 2. Introduction 2.1 Ports 2.2 Speed and Distance WALLMOUNT POWER SUPPLY CONNECTORS CONNECTORS TX RX TX RX DB-9 TERMINAL BLOCK Figure 2-1. The FOM Line Driver.
- Page 6 FOM LINE DRIVER—ST AND S M 3. Configurations 3.1 Network Mode NOTE There is no collision detection. TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX Data Path 232/485/C. Loop 232/485/C. Loop 232/485/C. Loop 232/485/C.
- Page 7 FOM LINE DRIVER—ST AND S M 3.2 Master/Slave Mode TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX Data Path Master Slave Slave Slave Transmitting Receiving Receiving Receiving Receiving Receiving Transmitting Receiving TX RX TX RX TX RX TX RX...
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Page 8: Fiber Optic
FOM LINE DRIVER—ST AND S M 3.3 Point-to-Point FIBER OPTIC CABLE TERMINAL TERMINAL DB-9 DB-9 BLOCK BLOCK Figure 3-3. Point-to-point—Both units configured as masters. NOTE The same interface is not required on both sides. -
Page 9: Installation
FOM LINE DRIVER—ST AND S M 4. Installation 4.1 Setup S1, Position 1—Mode Select S1, Position 2—Master/Slave Select NOTE To use the following switch positions appropriately, you should have a firm understanding of your network requirements. S1, Positions 3 through 6—RS-485 Failsafe/Biased Line S1, Positions 7 and 8—RS-485 Termination 0 = Open/Off 1 = Closed/On... - Page 10 FOM LINE DRIVER—ST AND S M Fiberoptic Cable Connections Chapter 3, Configurations Section 4.2 Section 4.3 Section 4.4 4.2 RS-232 Set XW1. DB9 Pinouts 2—TX Data 2—RX Data 3—RX Data 3—TX Data 7—RTS Input 7—RTS Held High 4—DTR Input 4—DTR Held High 8—CTS Output 5—Signal Ground 6—DSR Held High...
- Page 11 FOM LINE DRIVER—ST AND S M 4.3 RS-485 Connect the wire to the terminal block. RXB (+) RXA (-) TXB (+) TXA (-) Set S5. Set W4, W5, and W6. For 4-wire operation: For 2-wire operation: Set S1. To terminate: Not terminated: 0 = Open/Off 1 = Closed/On...
- Page 12 FOM LINE DRIVER—ST AND S M Biased, Failsafe Operation (S1, positions 3 through 6). NOTE To use S1 positions 3 through 6 appropriately, you should have a firm understanding of your network requirements. S1 Position 3 Line Driver TB1-4 Data Flow TB1-3 S1 Position 4 S1 Position 6...
- Page 13 FOM LINE DRIVER—ST AND S M 4.4 20-mA Current Loop (Point to Point) NOTE To use the following switch positions appropriately, you should have a firm understanding of your network requirements. Connect the wire to the terminal block. Set S5. Set S2 and S3.
- Page 14 FOM LINE DRIVER—ST AND S M 5. Quick Setup Guide XW1B = Sets the RS-232 interface for DTE XW1A = Sets the RS-232 interface for DCE W2 = RTS/CTS delay XW2A = RS-232 0 10 30 ms interface Loopback RX A Switch RX A TX A...
- Page 15 FOM LINE DRIVER—ST AND S M When in 2-wire, this is the time that the driver remains enabled after the TX of the last data bit. Delays are: A = 7 ms B = 2 ms C = 0.7 ms XW2B = RS-485 D = 0.15 ms interface...
- Page 16 FOM LINE DRIVER—ST AND S M S5 set to A (20mA) XW2C = 20-mA interface 20-mA Terminal Block Loopback RX A Switch RX A TX A TX A RX B TX B RS-232 Slave Master Network RX B 20mA RS-485 TX B RS-232 S2 and S3...
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Page 17: Troubleshooting
FOM LINE DRIVER—ST AND S M 6. Troubleshooting 6.1 Application Problems Do this before you call for technical support 6.2 Calling Your Supplier 6.3 Shipping and Packaging... - Page 18 FOM LINE DRIVER—ST AND S M Application Diagram forms are found on pages 19, 21, and 23. You may be asked to fax your diagram to the Technical Support department. Use scissors to remove the page.
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Page 19: Local Node
FOM LINE DRIVER—ST AND S M Local Node Remote Node NOTE NOTE 0 = Open or Off 0 = Open or Off 1 = Closed or On 1 = Closed or On... - Page 20 FOM LINE DRIVER—ST AND S M...
- Page 21 Local Node Remote Node NOTE NOTE 0 = Open or Off 0 = Open or Off 1 = Closed or On 1 = Closed or On...
- Page 22 FOM LINE DRIVER—ST AND S M...
- Page 23 Local Node Remote Node NOTE NOTE 0 = Open or Off 0 = Open or Off 1 = Closed or On 1 = Closed or On...
- Page 24 FOM LINE DRIVER—ST AND S M...
- Page 25 FOM LINE DRIVER—ST AND S M...
- Page 26 © Copyright 1998. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...
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