RAD Data comm E1 Interface Converter RIC-E1 - Manual (Page 90)

Introduction E-1
Appendix E
IR-X.21B Interface Module
Contents
E.1 I NTRODUCTION .................................................................................................E-1
Application...................................................................................................E-1
Rear Panel....................................................................................................E-1
E.2 S ELECTING THE IR-X.21B T IMING .........................................................................E-2
EXT Clock Mode...........................................................................................E-2
INT/LBT Clock Mode....................................................................................E-3
E.1 Introduction
IR-X.21B is an interface module for the standalone RIC-E1 units, converting X.21
signals to TTL levels.
Application
Figure E-1 shows a typical application of RIC-E1 with IR-X.21B interface module.
X.21
RIC-E1
G.703
Network
Router
Figure E-1. Typical Application of RIC-E1 with IR-X.21B Module
Rear Panel
Figure E-2 shows the rear panel of RIC-E1 equipped with the IR-X.21B interface
module.
10
0-
230
V
A
C
0.
25
0A
T
2
50V
LINK
TX RX
X.21
Figure E-2. Rear Panel of RIC-E1 with IR-X.21B Module
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