Black Box ME822A-F Manual Download

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JUNE 2000

ME822A-F

ME822A-M

Short-Haul Modems, NPR/RJ-45

CUSTOMER SUPPORT INFORMATION

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

Mailing address:

Black Box Corporation

, 1000 Park Drive, Lawrence, PA 15055-1018

Web site:

www.blackbox.com

• E-mail:

[email protected]

SHM-NPR

DCE

DTE

Summary of Contents for ME822A-F

Page 1: ...ree 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 Mailing address Black Box Corporation 1000 Park...

Page 2: ...1 SHM NPR RJ 45 TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners...

Page 3: ...ommercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be nece...

Page 4: ...abo s tano mojado o cerca de una alberca etc 6 El aparato el ctrico debe ser usado nicamente con carritos o pedestales que sean recomendados por el fabricante 7 El aparato el ctrico debe ser montado a...

Page 5: ...contactos y recept culos donde salen del aparato 14 El equipo el ctrico debe ser limpiado nicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deber ser l...

Page 6: ...isted pair cable with DC continuity Connectors RS 232 DB25 male for ME822A M female for ME822A F Line RJ 45 female Operating Temperature 32 to 112 F 0 to 45 C Humidity Tolerance Up to 95 relative humi...

Page 7: ...NOTE When power is removed from the DCE or DTE to which the SHM is connected the SHM can no longer send a signal to the remote receiver Under this condition the idled cable is susceptible to noise rec...

Page 8: ...4 km With an externally accessible DCE DTE switch the SHM allows easy connection to any device without opening the unit Termination is via RJ 45 connectors Table 2 1 Transmission Distances Data Rate...

Page 9: ...et the switch located on the top of the printed circuit board to the DCE or DTE position NOTE You don t have to open the plastic case to change the switch setting Figure 2 1 The DCE DTE Switch The SHM...

Page 10: ...9 SHM NPR RJ 45 Figure 2 2 The SHM s Components DCE DTE DCE DTE Switch RS 232 Connection male or female...

Page 11: ...ed entirely by the terminal or computer s control and data signals The SHM has an interface connection at each end one for DTE or DCE and one for the telephone line twisted pairs To install the SHM 1...

Page 12: ...the DCE position If you are uncertain as to how your equipment operates try each of the settings to see which one works in your application 4 Plug the SHM s interface connector end into the RS 232C c...

Page 13: ...Figure 3 3 Typical Short Range Modem Applications Customer Owned Unloaded Twisted Pair Cable Customer Owned Unloaded Twisted Pair Cable Async MiniComputer Async Terminal PC Serial Printer SHM NPR RJ 4...

Page 14: ...Receive Data Data From DCE 4 CA Request to Send Control To DCE 5 CB Clear to Send Control From DCE 6 CC Data Set Ready Control From DCE 7 AB Signal Ground Ground 8 CF Data Carrier Detect Control From...

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