Black Box MT160A, PS462A, MT161C-25, MT161C-V35, PS463A User Manual

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax [phone]

© Copyright 1999. Black Box Corporation. All rights reserved.

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APRIL 1999
MT160A PS462A
MT161C-25 PS463A
MT161C-V35 RM202
PS460A RM204
PS460AE RM208
PS461A RM216

MicroCSU/DSU Cards

MicroRACK

ON

OFF

Power

MicroRack System
AC Power Supply

1

TRADEMARKS

TRADEMARKS USED IN THIS MANUAL

AT&T is a registered trademark of AT&T.

MCI is a registered trademark of MCI Telecommunications Corporation.

Sprint is a registered trademark of U.S. Sprint Communications Ltd.

Any trademarks used in this manual are acknowledged to be the property of the
trademark owners.

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MicroCSU/DSU Cards and MicroRacks

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
igital 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.

3

NOM STATEMENT

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.

4

MicroCSU/DSU Cards and MicroRacks

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.

5

CONTENTS

Contents

Chapter Page

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

2. Introduction ........................................................................................................10

2.1 Overview ....................................................................................................10

2.2 Features......................................................................................................11

3. Before You Begin ................................................................................................12

3.1 Dedicated DDS Configuration ................................................................12

3.2 Campus Area Short-Haul Configuration ................................................12

3.3 Network Interface Connection ................................................................12

4. Configuration ......................................................................................................13

4.1 Front-Panel LEDs ......................................................................................13

4.2 Source of Configuration ..........................................................................14

4.2.1 Hardware Switches ..........................................................................15

4.2.2 Software Switches ............................................................................21

4.3 Rear Card Configuration..........................................................................29

4.3.1 MicroCSU/DSU DB25 Rear Strap Settings ..................................31

4.3.2 MicroCSU/DSU V35 Rear Strap Settings ....................................32

5. Installation ..........................................................................................................34

6. DDS Testing ........................................................................................................38

6.1 Local Analog Loopback Testing ..............................................................38

6.2 Remote Digital Loopback Testing ..........................................................39

6.3 V.52 BER Test Generator..........................................................................40

6.4 Telco Testing ............................................................................................40

6.4.1 CSU Loop ........................................................................................41

6.4.2 DSU Loop ........................................................................................41

Appendix A. Cable Recommendations ..................................................................42

Appendix B. Interface Pin Assignment ..................................................................43

B.1 DDS Interface ............................................................................................43

B.2 M/34 Connector, Terminal Interface ....................................................43

B.3 DB25 Connector, Terminal Interface ....................................................44

Appendix C. Transmitter Clock Source During Test Loops ................................45

6

MicroCSU/DSU Cards and MicroRacks

1. Specifications

MicroCSU/DSUs (MT160A, MT161C-25, MT161C-V35)

DDS Type — Dedicated DDS

Transmission Format — Asynchronous, synchronous

Internal Interface — Connection to rack chassis via a 50-pin male card edge

External Interface — DB25 female, M/34 female, RJ-48S

Standards — AT&T 62310 compliant

DDS Line Rates — 2.4, 4.8, 9.6, 19.2, 56, and 64 Kbps

DTE Rates — 2.4, 4.8, 9.6, 19.2, 38.4, 56, 57.6, and 64 Kbps

Leads Supported — MT160A, MT161C-V35: B, C, D, E, F, H, L, M, N, P, R, S, T, U,

V, W, X, Y, AA; MT161C-25: 1–9, 11, 12, 14–18, 20, 21, 24, 25

Control Port — Configuration and diagnostics

Transmission Line — 4-wire

Applications — DDS point-to-point or multipoint; campus-area point-to-point

Indicators — (10) LEDs: POWER, TD, RD, CTS, CD, DTR, NS, OS, ER, and TM

Operation — Full duplex

Clocking — Internal, External, Recovered

Diagnostics — V.54 compliant local and remote loopback tests; V.52 compliant 511

BER test, telco CSU and DSU loops

Power Supply — Rackmount power supply is switchable between 120 and 240 VAC;
chassis supplies 10 VAC to the MicroCSU/DSU, typical consumption is 1.5W per
slot

Fuse — 400 mA for 120V applications; 200 mA for 240V applications

Operating Temperature — 32° to 114°F (0° to 45°C)

7

CHAPTER 1: Specifications

Storage Temperature — -40° to 176°F (-40° to 80°C)

Humidity — Up to 95%, noncondensing

Size — MT160A: 2.5"H x 5"W x 1"L (6.4 x 12.7 x 2.5 cm); MT161C-25, MT161C-

V35: 2.5"H x 4.5"W x 1"L (6.4 x 11.4 x 2.5 cm)

Weight — 1 lb. (0.5 kg)

MicroRacks (RM202, RM204, RM208, RM216)

Indicators — Indicators are on the front card (MT160A)

Number of Slots — RM202: 2; RM204: 4; RM208: 8; RM216: 16

Power Source — Internal

Input Voltage — 120 VAC

Input Current/Amps — 200 mA

Input Connector Type — IEC 950

Connector Style — On the CSU/DSU rear cards

Operating Temperature — 32° to 114°F (0° to 45°C)

Storage Temperature — -40° to 176°F (-40° to 80°C)

Humidity — 0 to 95%, noncondensing

Size — RM202: 3.5"H x 3.5"W x 7.5"D (8.9 x 8.9 x 19.1 cm); RM204: 3.5"H x 5.5"W

x 7.5"D (8.9 x 14 x 19.1 cm); RM208: 3.5"H x 9.5"W x 7.5"D (8.9 x 24.1 x 19.1 cm);
RM216: 3.5"H x 19"W x 7.5"D (8.9 x

48.3 x 19.1 cm)

Weight — RM202, RM208, RM216: 5 lb. (2.2 kg); RM204: 4 lb. (1.8 kg)

Power Supply (PS460A)

Power Source — Internal

Input Voltage — 110 volts AC

8

MicroCSU/DSU Cards and MicroRacks

Power Supply (PS460AE)

Power Source — Internal

Fuses — (4) Included (2 in the drawer and 2 spares)

Input Voltage — 115 or 230 volts AC, autosensing

Power Supply (PS461A)

Power Source — Internal

Input Voltage — 48 volts DC

Input Connector Type — PS461A: Terminal screw connections

Indicators — Power, DC input

Size — 3.5"H x 1.5"W x 7"D (8.9 x 3.8 x 17.8 cm)

Weight — 1 lb. (0.5 kg)

Power Supplies (PS462A and PS463A)

F

RONT

P

OWER-SUPPLYCARD

Power Supply — PS462A: 24 VDC; PS463A: 12 VDC

Input Voltage — PS462A: 13–36VDC; PS463A: 10–20 VDC

Input Protection — PS462A: Triggered at 39 VDC; PS463A: Triggered

at 22 VDC

Maximum Input
Current — PS462A: 2A @ 18 VDC; PS463A: 4A @ 10 VDC

Isolation Voltage — 500V RMS, input to output

Output Voltage — 12 VAC @ 2A

Output Power — 24W

Switches — Power on/off

Indicators — Power, DC Input

9

CHAPTER 1: Specifications

R

EARPOWER-SUPPLYCARD

Connection — Cage-clamp terminal block with +DC In, -DC In, Frame

Ground, Alarm, Alarm C, +DC Out, -DC Out

Wire — 26-14 solid or stranded cable

Alarm — Opens when power is attached and closes when power

is disconnected

10

MicroCSU/DSU Cards and MicroRacks

2. Introduction

2.1 Overview

The MicroCSU/DSU operates either synchronously or asynchronously and
supports data rates to 64 Kbps. An easily accessible control port allows the user to
enable diagnostic utilities, including V.54 and V.52 test. Ten easy-to-read LEDs
monitor data and control signals.

The Cards are AT&T

®

compliant and are fully compatible with DDS, Clear
Channel 64, and other digital services available from major service providers
including AT&T, Sprint

®

, and MCI®. They can also be used as high-speed modems

for private twisted pair.

In order for your MicroCSU/DSU to function properly, you will need one front
card (MT160A), one rear card (MT161C-25 or MT161C-V35), one power supply
(PS460A, PS461A, PS462A, or PS463A), and one MicroRack (RM202, RM204,
RM208, or RM216).

The MicroCSU/DSU Cards are designed to mount in any size MicroRack.
Depending on which model MicroRack you choose, it will hold up to 16 cards.
Measuring only 3.5 inches high, the Card is designed to occupy only 2U in a 19­inch rack. The MicroRacks are powered by either the MicroRack AC Power Supply
(PS460A) or a MicroRack DC Power Supply (PS461A, PS462A, or PS463A). The
MicroRacks use mid-plane architecture (the front card can be plugged into
different rear cards). Therefore, the MicroCSU/DSU Cards can have several
interface options and can be switched with other short-haul cards.

The table on the next page lists the names and codes of the products described
in this manual.

11

CHAPTER 2: Introduction

Code Product Name

MT160A MicroCSU/DSU Front Card

MT161C-25 MicroCSU/DSU DB25 Rear

MT161C-V35 MicroCSU/DSU V35 Rear

PS460A MicroRack AC Power Supply

PS461A MicroRack 48-VDC Power Supply

PS462A MicroRack 24-VDC Power Supply

PS463A MicroRack 12-VDC Power Supply

RM202 MicroRack 2

RM204 MicroRack 4

RM208 MicroRack 8

RM216 MicroRack 16

2.2 Features

• Operates over dedicated digital lines.

• Supports rates of 56 and 64 Kbps and all sub-rates.

• Provides both RS-232 and V.35 interfaces.

• Features V.52 and V.54-compliant tests.

• Easy-to-read LEDs monitor data and line signals.

• AT&T 62310 compliant.

• Can be used as a high-speed modem for private twisted pair.

12

MicroCSU/DSU Cards and MicroRacks

3. Before You Begin

This chapter describes how to install the MicroCSU/DSU for dedicated operation
or for use as a campus-area short-haul modem.

3.1 Dedicated DDS Configuration

The MicroCSU/DSU can easily be configured for dedicated DDS operation by
means of the DIP switches on the bottom of the enclosure. Set the Line Rate
to match the rate of service to which you subscribe. Set the Mode switches for
Network Clocking. The Rate Converter and Data Format options should be set
as required for your application. The remaining options may also need to be set
depending on your terminal equipment and your application.

3.2 Campus Area Short-Haul Configuration

The unit can also be used for campus area point-to-point short-haul applications
on private twisted-pair wires. Set the Line Rates the same on both units. Set the
Mode switch for the appropriate Transmit Clock Mode for your application.
Internal, External, and Looped Clock Modes are available. Set the remaining
options as needed by your terminal equipment or your application.

3.3 Network Interface Connection

The Network Interface is an 8-position modular connector. Connect this port to
the RJ-48S jack provided by the digital data service provider. If you are using the
MicroCSU/DSU for private short-haul communication, the twisted-pair cable will
connect to this port. See Appendix B for the pin assignments of this connector.