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Black Box MD940A-F, Manual

The Black Box MD940A-F comes with a comprehensive user manual that you can easily download for free from our website. This manual provides detailed instructions and guidance on operating and maximizing the potential of your MD940A-F. Access it now and enjoy hassle-free and efficient use of your product.

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June 2015

MD940A-F

MD940A-M

Part Numbers

Fiber Driver - ST/DB25F

MD940A-F

Fiber Driver - ST/DB25M

MD940A-M

FIBER DRIVER

CUSTOMER

SUPPORT

INFORMATION

Order toll-free in the U.S.: 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
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com

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Summary of Contents for MD940A-F

Page 1: ...ER CUSTOMER SUPPORT INFORMATION Order toll free in the U S 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 Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com ...

Page 2: ...25 2 dBm Transmitter Coupled Power Actual coupled power varies in fiber optic applications due to mechanical alignment of components and or connector and optical fiber tolerances The Fiber Driver provides a range select feature that allows the user to compensate for these variations as needed Table 1 1 Transmitter Coupled Power Settings W3 cable type W3 A short range uW dBm W3 B medium range uW dB...

Page 3: ...g the Fiber Drivers Remove the two screws and lift off the cover to access the internal configuration jumpers on the Fiber Driver Set jumpers W1 W2 and W3 as appropriate for your application see Figure 3 1 and Table 3 1 Reinstall the cover and then set toggle switch S1 for either DTE to connect to a PC or DCE to connect to a modem Connect the two fiber drivers using multi mode fiber optic cables w...

Page 4: ...pen DCE Data Carrier Equipment DTE Data Terminal Equipment Set toggle switch S1 for either DTE to connect to a PC or DCE to connect to a modem Note 1 Pin 6 DSR is pulled to 5 volts through jumper W1 Please see Table 3 1 for details Troubleshooting If the Fiber Drivers fail to operate check the following before calling for technical support 1 Are both units powered on Check to see if the power supp...

Page 5: ...dential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This digital apparatus does not exceed the Class A limits for radio noise emissi...

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