RAD Data comm ASMi-31 Especificações descarregar pdf (Página 105)

ASMi-31 Ver. 3.0 Introduction D-1

Appendix D

IR-G.703/CO Interface

Module

D.1 Introduction

IR-G.703/CO is an interface module for RAD modems, converting G.703 64 kbps

codirectional signals to TTL levels. The converted data is sent over the modem

link using the modem modulation technique and converted back at the other end

into G.703 64 kbps codirectional signals, or into any other digital interface signal

possible. The module is available in the following two versions:

• Standalone version, which fits into a standalone modem and is available with

two types of physical connections: a terminal block or an RJ-45 (see

Table D-

for the RJ-45 connector pinout).

• Rack version, which is mounted on the ASMi-31/R modem card and uses the

modem edge connector for communication. The edge connector is wired, on

the motherboard of the card cage, to the DB-25 connector on the back plane

of the ASM-MN-214 card cage (see

Appendix A

for the DB-25 connector

pinout).

Figure D-1

illustrates the rear panel of the ASMi-31 modem equipped with the

IR-G.703/CO interface module.

GND

245

LINE

G.70 3

XMTRCVGND

100-240VAC/ 48/60VDC

Return Power

Figure D-1. Rear Panel of ASMi-31 with IR-G.703/CO Module

Table D-1. RJ-45 Connector Pinouts

Pin Function

3 RCV (+)

6 RCV (-)

4 XMT (+)

5 XMT (-)

2 GND

1 2 ... 100 101 102 103 104 105 106 107 108 109 110 ... 113 114

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RAD Data comm ASMi-31 Especificações Página 105