Black Box Balun G.703 Manuel utilisateur

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746

JUNE 1998

MT243A

MT243C-F

RM243A

G.703 Balun Module Panel Unit

G.703 Balun Module

G.703 Balun Chassis

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]

CE NOTICE

CE Notice

The CE symbol indicates that the product is in

compliance with the Electromagnetic Compatibility

(EMC) directive and the Low Voltage Directive (LVD)

of the Union European (EU).

TRADEMARKS USED IN THIS MANUAL

Any trademarks mentioned in this manual are

acknowledged to be the property of the trademark

owners.

G.703 MODULES, MODULE PANEL, AND CHASSIS

1. Specifications

Data Rate — 2.048 Mbps

Transmission Line — CCITT G.703 (unstructured)

Connections — 75-ohm: Dual coax BNC connectors,

female (RG59 or 2002 coax); 120-ohm: Shielded RJ-45

jack

Link-to-Data Isolation — 500 volts AC/DC

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

Power Supply — None required

Size — Without handles, 3.5"H x 19"W x 1.9"D

(8.9 x 48.3 x 4.8 cm)

CHAPTER 2: Description

2. Description

2.1 Introduction

The G.703 Balun Module Panels match multiple sets of

dual 75-ohm coax connections to multiple 120-ohm

twisted-pair connections. This allows carriers to provide

120-ohm G.703 service to customers retaining 75-ohm

CPE hardware. It also allows carriers who have

standardized on 75-ohm coax to provide 120-ohm

terminations to their customers (in keeping with

European ONP requirements).

Supporting E1 data rates to 2.048 Mbps, the G.703

Balun Module Panels bi-directionally match not only

signal impedance, but also the pulse shapes of the

signals according to the CCITT G.703 standard. The

panels mount in a standard 19-inch rack and are

available with 1 to 16 modules per rack.

G.703 MODULES, MODULE PANEL, AND CHASSIS

2.2 Features

• Connects 75-ohm dual coax to 120-ohm twisted

pair.

• Bi-directional signal conversion according to

CCITT G.703.

• Data rates up to 2.048 Mbps.

• Low-profile design.

• Mounts in standard 19-inch rack.

• No AC power or batteries required.

• Strap-selectable modular (RJ-45) pinouts.

CHAPTER 3: Configuration

3. Configuration

Each G.703 Balun Module is equipped with four

jumpers that you may use to configure several

grounding options. This chapter shows the jumper

locations and describes their functions.

There are five configuration jumpers on the back of the

Module’s printed circuit board. These jumpers are

labeled JP1, JP2, JP3, JP4, and JP7. Figure 3-1 shows their

positions on the PC board as well as the relative pin

numbers on the jumpers.

G.703 MODULES, MODULE PANEL, AND CHASSIS

Figure 3-1. Jumper Location.

Figure 3-2 shows the orientation of the rear interface-

card straps. Note that the strap can either be on posts 1

and 2, or on posts 2 and 3.

Figure 3-2. Possible Positions for the Jumpers.

1 2 3 1 2 3

JP4

JP3

JP1

JP2

JP7

CHAPTER 3: Configuration

The jumper straps allow you to set shielding and

grounding options. The settings for each jumper strap

are shown in the table below. Following the table are

more detailed explanations of each jumper.

Table 3-1. Strap Summary Table

Strap Function Position 1&2 Position 2&3

JP1 Coax TX Shield & RJ-45 Pin 3 Open* Connected

JP2 Coax TX Shield & RJ-45 Shield Connected* Open

JP3 Coax RX Shield & RJ-45 Shield Connected* Open

JP4 Coax RX Shield & RJ-45 Pin 6 Open* Connected

JP7 RJ-45 Shield & Chassis Ground Connected* Open

*Indicates default setting

Ce manuel convient aux modèles suivants

Table des matières

Autres manuels Black Box Matériel réseau

Black Box

Black Box AC1059A Manuel utilisateur

Black Box

Black Box LES1208A-R2 Manuel utilisateur

Black Box

Black Box LT2060A Manuel utilisateur

Black Box

Black Box KV1308C Manuel utilisateur

Black Box

Black Box PI1375A Manuel utilisateur

Black Box

Black Box LB9218A Manuel utilisateur

Black Box

Black Box LES1604A Manuel utilisateur

Black Box

Black Box JPM440A Manuel utilisateur

Black Box

Black Box ACR2004A Manuel utilisateur

Black Box

Black Box JPM083A Manuel utilisateur

Black Box

Black Box Multi Quick Check RJ-11 Manuel utilisateur

Black Box

Black Box 5000 series Manuel utilisateur

Black Box

Black Box NTU-1 Manuel utilisateur

Black Box

Black Box ServSwitch Octet Series Manuel de service

Black Box

Black Box LB0010A-A24-R2 Manuel utilisateur

Black Box

Black Box KVT617A Manuel utilisateur

Black Box

Black Box LB410A Manuel utilisateur

Black Box

Black Box SW551A Manuel utilisateur

Black Box

Black Box ServSelect KV119A Instructions d'installation et d'entretien

Black Box

Black Box IC240A Manuel utilisateur

Black Box

Black Box V5.1 Manuel utilisateur

Black Box

Black Box USB Director RS-232 Manuel utilisateur

Black Box

Black Box 39625 Manuel utilisateur

Black Box

Black Box SW549A Manuel utilisateur

Manuels Matériel réseau populaires d'autres marques

Matrix Switch Corporation

Matrix Switch Corporation MSC-HD161DEL Manuel utilisateur

B&B Electronics

B&B Electronics ZXT9-IO-222R2 Manuel utilisateur

Yudor

Yudor YDS-16 Manuel utilisateur

D-Link

D-Link ShareCenter DNS-320L Manuel utilisateur

Samsung

Samsung ES1642dc Instructions d'utilisation

Honeywell Home

Honeywell Home LTEM-PV Instructions de montage

evertz

evertz 7700 Series Manuel utilisateur

D-Link

D-Link ShareCenter DNS-343 Manuel utilisateur

Asante

Asante AsanteBridge 1012 Manuel utilisateur

FireBrick

FireBrick FB2700 Manuel utilisateur

Audiovox Electronics

Audiovox Electronics ARWH2T Manuel utilisateur

ADC

ADC DSX-1 Manuel

NetComm

NetComm NF2 Manuel utilisateur

Alcatel-Lucent

Alcatel-Lucent 5620 Manuel utilisateur

Dell EMC

Dell EMC XC6420 Series Manuel utilisateur

Lanner

Lanner NCA-1020A Manuel utilisateur

Allied Telesis

Allied Telesis AT-TN121-A Manuel utilisateur

Arista

Arista CCA-ETM-Q12 Manuel utilisateur