Black Box ME621A Manuale utente

OCTOBER 1998

ME620A

ME621A

Modular Fiber Campus Driver Plus-

256 kbps

Modular Fiber Campus Driver-128 kbps

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]

MODULAR FIBER CAMPUS DRIVER, MFCD PLUS

FEDERAL COMMUNICATIONS COMMISSION

AND

CANADIAN DEPARTMENT OF COMMUNICATIONS

RADIO FREQUENCY INTERFERENCE STATEMENTS

This equipment generates, uses, and can radiate radio frequency energy and if not

installed and used properly, that is, in strict accordance with the manufacturer’s

instructions, may cause interference to radio communication. It has been tested

and found to comply with the limits for a Class A computing device in accordance

with the specifications in Subpart B of Part 15 of FCC rules, which are designed to

provide reasonable protection against such interference when the equipment 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 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 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 la classe A prescrites dans le Règlement sur le

brouillage radioélectrique publié par le ministère des Communications du Canada.

The CE symbol on your equipment indicates that it complies with the

Electromagnetic Compatibility (EMC) directive and the Low Voltage Directive

(LVD) of the Union European (EU).

MODULAR FIBER CAMPUS DRIVER, MFCD PLUS

NORMAS OFICIALES MEXICANAS (NOM)

ELECTRICAL SAFETY STATEMENT

INSTRUCCIONES DE SEGURIDAD

1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de

que el aparato eléctrico sea operado.

2. Las instrucciones de seguridad y operación deberán ser guardadas para

referencia futura.

3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de

operación deben ser respetadas.

4. Todas las instrucciones de operación y uso deben ser seguidas.

5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca

de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc..

6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que

sean recomendados por el fabricante.

7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea

recomendado por el fabricante.

8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá

a lo descrito en las instrucciones de operación. Todo otro servicio deberá ser

referido a personal de servicio calificado.

9. El aparato eléctrico debe ser situado de tal manera que su posición no

interfiera su uso. La colocación del aparato eléctrico sobre una cama, sofá,

alfombra o superficie similar puede bloquea la ventilación, no se debe colocar

en libreros o gabinetes que impidan el flujo de aire por los orificios de

ventilación.

10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor

como radiadores, registros de calor, estufas u otros aparatos (incluyendo

amplificadores) que producen calor.

11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del

tipo descrito en el instructivo de operación, o como se indique en el aparato.

MODULAR FIBER CAMPUS DRIVER, MFCD PLUS

12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización

del equipo no sea eliminada.

13. Los cables de la fuente de poder deben ser guiados de tal manera que no

sean pisados ni pellizcados por objetos colocados sobre o contra ellos,

poniendo particular atención a los contactos y receptáculos donde salen del

aparato.

14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las

recomendaciones del fabricante.

15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas

de energia.

16. El cable de corriente deberá ser desconectado del cuando el equipo no sea

usado por un largo periodo de tiempo.

17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean

derramados sobre la cubierta u orificios de ventilación.

18. Servicio por personal calificado deberá ser provisto cuando:

A: El cable de poder o el contacto ha sido dañado; u

B: Objectos han caído o líquido ha sido derramado dentro del aparato; o

C: El aparato ha sido expuesto a la lluvia; o

D: El aparato parece no operar normalmente o muestra un cambio en su

desempeño; o

E: El aparato ha sido tirado o su cubierta ha sido dañada.

MODULAR FIBER CAMPUS DRIVER, MFCD PLUS

TRADEMARKS

The trademarks mentioned in this manual are the sole property of their owners.

MODULAR FIBER CAMPUS DRIVER, MFCD PLUS

Contents

Chapter Page

1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 General Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3. Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Configuration Switch S1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.1 Connection to the Fiber Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2 Connection to the Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.2.1 Changing Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.2.2 Connection to a “DTE” Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.2.3 Connection to a “DCE” Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.2.4 Re-configuring the X.21 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.3 Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1 Power-On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.2 LED Status Monitors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.3 Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.3.1 Local Analog Loopback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.3.2 Remote Analog Loopback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Appendix: Interface Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

MODULAR FIBER CAMPUS DRIVER, MFCD PLUS

1. Specifications

Transmission—Asynchronous and synchronous

Clocking—Internal, external or derived from receive signal

Distance—Up to 3 miles (4.8 km)

ME621A Data Rates—Asynchronous: 0 to 19.2 kbps; Synchronous: 4.8, 9.6, 14.4,

19.2, 28.8, 32.0, 56.0, 64.0, 128.0 kbps

ME620A Data Rates—Asynchronous: 2.4 to 38.4 kbps; Synchronous: 2.4, 9.6,

14.4, 28.8, 38.4, 56.0, 64.0, 72.0, 128.0, 144.0, 192.0, 256.0 kbps

Handshaking—Software (XON/XOFF) or hardware (RTS/CTS); both modes

available at all time.

Connectors—(1) Fiber ST

Link Budget—12 dB (62.5 micron), 8 dB (50.0 micron)

Diagnostics—V.54 Compliant; Local Analog Loopback and Remote Digital

Loopback bit-error-rate pattern

Fiber Modes—Single 50- or 62.5-micron core, multi-mode fiberoptic cable

LED Indicators—TD, RD, RTS, DTR, ER, NS and TM

Interface Modules—EIA RS-232/CCITT V.24, RS-232/530, CCITT V.35, X.21,

Ethernet Bridge and G.703

Power—85 to 256 VAC universal-input power supply, 50/60 Hz

Regulatory Compliance—FCC part 15 Class A, UL 1950, EN60950 89/336/EEC,

73/23/EEC IEC 825 Class 1 equipment

Temperature Range—32 to 122°F (0 to 50°C)

Altitude—Up to 15,000 feet (4572 m)

Humidity—5 to 95% non-condensing

Size—1.6"H x 7.3"W x 6.6"D (4.1 x 18.5 x 16.8 cm)

Weight—2.02 lb. (1 kg)

MODULAR FIBER CAMPUS DRIVER, MFCD PLUS

2. Introduction

2.1 Description

The Modular Fiber Campus Driver (ME621A) and the Modular Fiber Campus

Driver Plus (ME620A) are designed for high-speed RS-232 communication over a

single multi-mode fiber. Operating at up to 128 kbps synchronous and 19.2 kbps

asynchronous data rates, the ME621A is perfect for campus applications where

data integrity is a must. The ME620A is even faster at a bursty 256 kbps

synchronous or 38.4 kbps async. Synchronous clocking options include internal,

external, or receive recovered clock.

Both models feature swappable DCE-DTE interface modules. Available

interfaces include V.24/RS-232 (part number ME481C-232), V.35 (part number

ME481C-35), RS-422/530 (part number ME481C-422), X.21 (part number

ME481C-X21), WAN Bridge (part number ME530A), and G.703 (part number

ME481C-G703). Fiber connections are made using an ST interface.

The Campus Drivers also incorporate V.54 compliant local and remote

loopback test modes that are activated by a convenient front panel switch. LED

status indicators monitor interface data and control signals as well as test mode

status. Available with a universal AC power supply, the Campus Drivers

conveniently fit in a wide range of applications and power supply environments.

If any questions or problems arise during installation or use of the Modular

Fiber Campus Drivers, please call Black Box Technical Support at 724-746-5500.

2.2 Features

• ME621A: Synchronous data rates: 4.8 to 128 kbps; Asynchronous data rates:

0 to 19.2 kbps

• ME620A: Synchronous data rates: 2.4 to 256 kbps; Asynchronous data rates:

0 to 38.4 kbps

• Full-duplex operation over a single multi-mode fiberoptic cable

• Point-to-point distances up to 3 miles (4.8 km)

• Internal, external or receive recovered clocking options

• Field-replaceable DTE-DCE interface modules: V.24/RS-232, V.35,

RS-422/530, X.21 and G.703 (modules ordered separately)

MODULAR FIBER CAMPUS DRIVER, MFCD PLUS

• V.54-compliant local and remote digital loopback tests

• 8 front-panel LED status indicators

• Available with ST fiber connectors

• Made in the U.S.A.

MODULAR FIBER CAMPUS DRIVER, MFCD PLUS

3. Configuration

Both Models ME621A and ME620A use a mini DIP-switch package that allows

configuration to a wide range of applications. These switches are located on the

bottom side of the PC board (see Figure 3-1). Because all eight switches are

externally accessible, you don’t have to open the case to configure the unit.

Figure 3-1. Underside of the Campus Driver, showing the location of the

DIP switches.

Configuration Switch “S1”

The switches shown in Figure 3-2 and on DIP switch S1 are used to set the async or

sync data rates, LAL and DL diagnostic functions, and the clock-mode setting. The

default settings for DIP switch S1 are shown in Table 3-1. Following the table are

detailed descriptions for each switch.

Figure 3-2. Close-up of configuration switches.

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