RAD Data comm E1 Interface Converter RIC-E1 Spécifications télécharger pdf (Page 17)

RIC-E1 Installation and Operation Manual Chapter 1 Introduction

Functional Description 1-3

1.3 Functional Description

Functional Block Diagram

Figure 1-3 shows the functional block diagram of RIC-E1.

Txd

Rxclk

Interchangable Interfaces

Rxd

Txclk

Loss

Ts t

Ana

LIU

Transformers

Clock

Gen.

BNC

Unbalanced

Balanced

Unbalanced

BNC

RJ - 45

P. S .

Select

IMP

Tx & Rx Code

AMI

HDB3

Figure 1-3. RIC-E1 Block Diagram

Timing Reference

RIC-E1 supports three clock modes:

• Internal, derived from its internal oscillator

• External, supplied by the attached DTE

• Receive, recovered from the received line signal.

Diagnostics

RIC-E1 supports a V.54 (loop 3) local loopback activated by the internal jumper of

the standalone RIC-E1 unit, front panel pushbutton of the RIC-E1/R card or via

corresponding pin of the DTE interface connector (not available for X.21 and

Ethernet interfaces). For more information, refer to Chapter 4.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 93 94

Pas de commentaire

RAD Data comm E1 Interface Converter RIC-E1 Spécifications Page 17