Black Box ME930C-RJ11 Bedienungsanleitung

CUSTOMER

SUPPORT

INFORMATION

Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX

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: [email protected]

FEBRUARY 1999

ME930C-RJ11

Sync MP Line Driver Card

Power

Cntrl

Out

Test

FCC/IC STATEMENTS AND DECLARATION OF CONFORMITY

FEDERAL COMMUNICATIONS COMMISSION

AND

INDUSTRY CANADA

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 J 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 Industry Canada.

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 Industrie Canada.

DECLARATION OF CONFORMITY

This equipment complies with the Electromagnetic Compatibility (EMC) directive

and the Low Volatge Directive (LVD) of the Euopean Union.

SYNC MP LINE DRIVER CARD

DISCLAIMER

Under no condition shall the manufacturer be liable for any damages incurred by

the use of this product. These damages include, but are not limited to, the

following: lost profits, lost savings, and incidental or consequential damages arising

from the use of or inability to use this product.

TRADEMARKS

Any trademarks mentioned in this manual are acknowledged to be the property of the

trademark owners.

TABLE OF CONTENTS

Contents

Chapter Page

1. Specifications ............................................................................................. 4

2. Introduction ............................................................................................... 6

2.1 Features ............................................................................................... 6

2.2 Overview .............................................................................................. 6

3. Configuration ............................................................................................. 7

3.1 The Orientation and Default Settings of the DIP Switch ................. 8

3.2 Detailed Switch Settings ..................................................................... 9

3.3 Configuring the Rear Half-Card ...................................................... 10

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

4.1 The MicroRACK Chassis ................................................................... 13

4.2 The MicroRACK’s Power Supply ..................................................... 14

4.3 Installing the Sync MP Line Driver Card ......................................... 14

4.4 Connecting Cables to the Card ........................................................ 15

4.4.1 Making the RS-232 Connection ............................................. 15

4.4.2 Making the Twisted-Pair Connection .................................... 16

4.4.2.A Point-to-Point Twisted-Pair Connections ................. 16

4.4.2.B Multipoint Twisted-pair Connections ...................... 17

5. Operation ................................................................................................. 18

5.1 LED Status Monitors ......................................................................... 18

5.2 Power-Up ........................................................................................... 19

5.3 Test Modes ........................................................................................ 19

5.3.1 Local Analog Loopback .......................................................... 19

5.3.2 Remote Analog Loopback ...................................................... 20

6. Troubleshooting ...................................................................................... 21

6.1 Calling Black Box .............................................................................. 21

6.2 Shipping and Packaging ................................................................... 21

Appendix A: Cable Recommendations ......................................................... 22

Appendix B: Block Diagram .......................................................................... 23

SYNC MP LINE DRIVER CARD

1. Specifications

Compliance — FCC Part 15 Subpart J Class A, IC Class/classe A

Interfaces — Local: EIA/TIA RS-232C/ITU-T V.24, V.28;

Line: Proprietary balanced 4-wire (see Line Type below)

Protocol — Synchronous

Clock Source — Internal or external (from DTE), user-selectable; with

special cabling, can also use recovered receive clock

Data Rate — 19.2, 14.4, 9.6, 7.2, 4.8, 2.4, or 1.2 kbps (user-selectable)

Flow Control — RTS/CTS (hardware—RTS/CTS delay can be 0, 8, or

53 ms, user-selectable); can also pass through

X-ON/X-OFF (software)

Carrier Control — Constantly on or controlled by RTS (user-selectable)

Operation — Point-to-point or multipoint

Line Type — 4-wire unconditioned twisted pair, 19 to 26 AWG, with

20 pF/ft. (65.6 pF/m) or better capacitance

Optical Isolation — 150 Vrms minimum

User Controls — Front-panel test pushbutton;

8-position DIP switch for various options mounted on

front half-card;

(3) Jumpers for grounding options mounted on rear

half-card

Diagnostics — Simultaneous local and remote analog loopback,

controlled with front-panel pushbutton

Indicators — (10) Front-mounted LEDs:

(1) Power;

(1) Test;

(2) TD:

(1) for positive-state activity (green),

(1) for negative-state activity (red);

CHAPTER 1: Specifications

Indicators

(continued) — (10) Front-mounted LEDs (continued):

(2) RD:

(1) for positive-state activity (green),

(1) for negative-state activity (red);

(2) Cntrl In:

(1) for RTS from local device ON (green);

(1) for RTS from local device OFF (red);

(2) Cntrl Out:

(1) for carrier and Carrier Detect ON (green);

(1) for carrier and Carrier Detect OFF (red)

Connectors — (1) DB25 female for RS-232;

(1) Six-wire RJ-11 (RJ-12) for line;

(1) 50-pin card-edge on each half-card for mating

interconnection and chassis attachment

Surge Protection — Silicon Avalanche Diodes capable of dissipating

600 watts rms within 1 millisecond (initial reponse

time less than 1 picosecond)

Power — Input: 10-VAC from MicroRACK chassis (which has

a switchable 120-VAC or 240-VAC power supply);

Consumption: 700 mW typical

Temperature

Tolerance — 32 to 122˚F (0 to 50˚C)

Humidity

Tolerance — 0 to 95% noncondensing

Size — Not incl. protruding connectors, screws, and controls:

Front half-card:

3.1"H x 1"W x 4.8"D (7.8 x 2.5 x 12.2 cm);

Rear half-card:

3.3"H x 1"W x 2.6"D (8.4 x 2.5 x 6.7 cm);

Front and rear half-cards mated:

3.3"H x 1"W x 7.2"D (8.4 x 2.5 x 18.3 cm)

Weight — Net total, both half-cards: 4 oz. (114 g, 0.3 lb., 0.1 kg)

SYNC MP LINE DRIVER CARD

2. Introduction

2.1 Features

• Supports data rates from 1200 to 19,200 bps, user-selectable

• Optical isolation

• High-speed surge protection

• Supports distances up to 10 miles (16 km)

• Designed to be mounted in our MicroRACK system

• Full set of LED indicators

• Point-to-point or multipoint

• Loopback test modes

• Internal or external clocking

• Can perform hardware (RTS/CTS) flow control or pass through software

(X-ON/X-OFF) flow control

• Carrier can be constantly ON or controlled by RTS

2.2 Overview

The Sync MP Line Driver Card (our product code ME930C-RJ11) operates in full

duplex over four-wire cable (two unconditioned twisted pairs). The Card supports

data rates up to 19.2 Kbps and has a maximum range of 10 miles (at 1200 bps over

19-AWG wire). The Card also passes one control signal in each direction and

features both optical isolation and Silicon Avalanche Diode surge protection on

the data-line side. It can use its internal clock or the external clock from the

attached DTE.

The Sync MP Line Driver Card is designed to be mounted in our MicroRACK

system (product codes RM202 through RM216), a chassis that takes up 2U (3.5",

8.9 cm) of vertical space in a 19" rack. This chassis has a switchable 115/230-volt

power supply and hosts cards with a midplane architecture: One “function” half-

card slides into the front of the chassis and mates in the middle with a “connector”

half-card that slides into the rear of the chassis.

The Sync MP Line Driver Card has two built-in diagnostic tools: local and remote

loopback tests. Additionally, LEDs on the Card’s front panel allow you to visually

monitor communication.

CHAPTER 3: Configuration

3. Configuration

This chapter describes the location and orientation of the Sync MP Line Driver

Card’s configuration switch, provides detailed instructions for setting each switch

position, and describes jumper settings for the rear half-card.

As shown in Figure 3-1 below, the Card’s “function” front half has an eight-

position DIP switch labeled “SW1” that you can use to configure the Card for any

of a wide range of synchronous applications. This DIP switch is accessible when the

Card is slid out of the rack chassis. Once configured, the Card is designed to

operate transparently, without need for frequent reconfiguration: Just set it and

forget it!

Figure 3-1. The front half-card of the Sync MP Line Driver Card.

SW1

(position 1 on left)

SYNC MP LINE DRIVER CARD

3.1 The Orientation and Default Settings of the DIP Switch

The eight-position DIP switch on the Sync MP Line Driver Card allows you to

specify the Card’s data rate, clocking method, RTS/CTS delay, and carrier-control

method. Figure 3-2 below shows the orientation of the DIP switch with respect to

the “ON” and “OFF” settings of its switch positions. Table 3-1 below summarizes

the factory-default settings of these switch positions.

Figure 3-2. DIP switch SW1.

Table 3-1. SW1’s factory-default settings.

Position Function Factory-Default

Setting

1 Data Rate OFF

2 " OFF (9600 bps)

3"ON

4(Reserved for (N/A)

future use)

5 Transmit Clock ON (Internal)

6 RTS/CTS Delay ON (8 ms)

7 " OFF

8 Carrier Control OFF (Constant)

12345678

ON ON

OFF

CHAPTER 3: Configuration

3.2 Detailed Switch Settings

This section provides detailed information about the function of each DIP-switch

position and lists all of their possible settings. Use this section as a configuration

guide for applications where the Sync MP Line Driver Card’s default settings would

not provide correct results.

1. Data Rate (Positions 1 through 3)

Switch positions 1 through 3 are set in combination to allow the Card to be used at

data rates from 1200 bps up to 19,200 bps.

Pos. 1 Pos. 2 Pos. 3 Data Rate in bps

ON ON ON 1200

OFF ON ON 2400

ON OFF ON 4800

ON ON OFF 7200

OFF OFF ON 9600 (default)

OFF ON OFF 14,400

ON OFF OFF 19,200 settings are identical

OFF OFF OFF 19,200

2. Position 4 is reserved for future use. Do not change its setting.

3. Transmit Clock (Position 5)

Switch position 5 is used to specify the Card’s clocking method. The Card will

provide an internal clock on DB25 Pin 15 if position 5 is set to OFF (the default),

or receive an external clock from the attached DTE on DB25 Pin 24 if position 5

is set to ON.

Although the Card can’t be directly set to use recovered receive clock from the

remote Card, it always outputs that signal on DB25 Pin 17. So you can “trick” the

local Card into using receive clock by setting it for external clock (position 5 ON)

and attaching a special cable to its DB25 connector. This cable must not only pass

Pin 17 on the Card to Pin 17 on the DTE (which must be set for receive clock) but

must also loop Pin 17 on the Card back to Pin 24 (the external clock lead) on the

Card. If you want such a cable, please call Black Box for technical support.

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