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Limited-Distance Modem 56/64

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]

JULY 1998

ME560A-V35-F

ME561A-V35-M

ME560AE-V35-F

ME561AE-V35-M

ME560A-V35-M

ME562A

ME560AE-V35-M

ME562AE

ME561A-V35-F

ME563A

ME561AE-V35-F

ME563AE

Summary of Contents for ME560A-V35-F

Page 1: ...upport 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 info blackbox co...

Page 2: ...ent is operated in a commercial 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 whateve...

Page 3: ...ba o lavabo 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 m...

Page 4: ...n a los 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 deb...

Page 5: ...y to persons Use only with a UL listed and CSA Certified Class 2 power supply rated 9 VDC 400 mA IMPORTANT Pour les utilisateurs Nord Americains Le Limited Distance Modem 56 64 est renforc par un tran...

Page 6: ...5 LIMITED DISTANCE MODEM 56 64 TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners...

Page 7: ...EM 56 64 CONTENTS Chapter Page 1 Specifications 7 2 Introduction 11 2 1 Description 11 2 2 Features 14 2 3 Application 15 3 Installation 16 4 Operation 21 4 1 General 21 4 2 Sync Mode 21 4 3 Async Mod...

Page 8: ...Mode Shortening of the stop bit on the receive end is selectable 12 5 allows a frequency difference between the async DTE and the Modem of 2 5 to 1 0 25 allows a frequency difference of 2 5 to 2 3 Tr...

Page 9: ...in a diagnostic loop Transmission Level 0 dBm Maximum Distance 19 AWG 6 mi 10 km 24 AWG 2 8 mi 4 5 km 26 AWG 2 mi 3 2 km Terminal Interface EIA RS 232 V 24 integral DB25 female connector V 35 interfac...

Page 10: ...minal block ME560A F 1 RJ 45 female pigtail cable with M 34 female ME560A M 1 RJ 45 female pigtail cable with M 34 male ME561A F 1 RJ 11 female pigtail cable with M 34 female ME561A M 1 RJ 11 female p...

Page 11: ...0 LIMITED DISTANCE MODEM 56 64 Power A versions wall mounted 9 VDC 115 VAC power supply AE versions wall mounted 9 VDC 230 VAC power supply Size 1 2 H x 2 1 W x 5 1 D 3 x 5 3 x 13 cm Weight 3 3 oz 90...

Page 12: ...ta rates of 56 or 64 kbps at distances of up to 6 miles 10 km according to the wire gauge and data rate see Table 2 1 Table 2 1 Approximate Range Data Rate 19 AWG 24 AWG 26 AWG 0 9 mm 0 5 mm 0 4 mm kb...

Page 13: ...female ME563A Each model has a DB25 connector for the DTE interface For the V 35 interface a 17 7 in 45 cm cable is supplied with a DB25 female connector on one side and a 34 pin male or female conne...

Page 14: ...osition switch in all models or by the DTE interface Circuit 141 Pin 18 and Circuit 140 Pin 21 The Test LED lights when any diagnostic loop is active The low transmit level minimizes crosstalk onto ad...

Page 15: ...asynchronous Data rates of 56 or 64 kbps selectable V 54 diagnostics including local and remote test Internal external or receive clock Transmission range of up to 6 miles 10 km Controlled or continu...

Page 16: ...15 LIMITED DISTANCE MODEM 56 64 2 3 Application Figure 2 1 shows a typical application of the Limited Distance Modem 56 64 Figure 2 1 Typical Application IBM 37X5 IBM 3174 ME562A ME562A...

Page 17: ...traightforward Follow these steps 1 Open the unit by separating the two parts of the plastic cover Press the marked points indicated on the sides 2 Strap the modem according to the Strapping Diagram s...

Page 18: ...sync Selects the S5 Length amount of stop bit shortening ON 12 5 to be used in OFF 25 25 Async mode Selects character S6 S7 No Bits length in Async OFF OFF 8 mode OFF ON 9 ON OFF 10 10 bits ON ON 11 C...

Page 19: ...into the RJ jack Verify that the connection between the local modem and the remote modem is as follows Local XMT connected to remote RCV Local RCV connected to remote XMT NOTE When operating in a noi...

Page 20: ...unit by pressing the two parts of the cover together 1 8 8 1 1 6 6 1 6 NC 5 Receive 4 Transmit 3 Transmit 2 Receive 1 GND RJ 11 jack female external view RJ 11 plug male Clip at rear 8 NC 7 NC 6 Rece...

Page 21: ...ug the modem directly into the computer port for the RS 232 version or via the mating cable for the V 35 version and fasten with the screws 6 Connect the external wall mount power supply to the Modem...

Page 22: ...The ten switches are mounted on two blocks as shown in Figure 3 1 The first block has six switches and the second has four Table 3 1 relates to these switches as one group numbered 1 to 10 4 2 Sync M...

Page 23: ...S CNT using S8 NOTE Personal computers working at high speed in async mode operate at 57 6 kbps instead of 56 kbps In such cases set the PC to two stop bits and strap the Modem for a character length...

Page 24: ...the mating cable DB25 to 34 pin the loop activating pins are JJ for ANA and HH for REM The TEST LED lights and Pin 25 Circuit 142 turns ON when the modem is in one of the diagnostic loops When using...

Page 25: ...Figure 4 1 Analog Loop ANA ANA tests the local modem only The XMT signal to the line is returned to the receiver Figure 4 2 Remote Digital Loop REM REM tests the local modem the line and the remote m...

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