RAD Data comm FCD-X21 Manuel d'installation Page 215

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FCD-E1 IR-ETH/Q Interface Options F-1
Appendix F
IR-ETH/Q Interface Module
F.1 Introduction
IR-ETH/Q is an interface module for RAD devices, used for converting the Ethernet
(10BaseT) electrical levels to the RAD unit TTL levels. It also converts the Ethernet
protocol to HDLC to enable long distance transmission and avoid the Ethernet
collision limitation. The IR-ETH/Q module also supports IEEE 802.1/Q frames
(VLAN tagged frames).
IR-ETH/Q includes an internal, self-learning Ethernet bridge, which enables a high
performance link between two Ethernet segments at a low transmission rate. The
module also supports VLAN applications. The low-speed HDLC transmission is
sent over the link and converted back to an Ethernet signal at the remote unit.
Figure F-1 shows a typical application using an Ethernet interface bridge. Each unit
is connected to an Ethernet network via the Ethernet interface bridge.
FCD-E1
FCD-E1
E1 Network
Figure F-1. Typical Application of FCD-E1 with IR-ETH/Q Module
F.2 IR-ETH/Q Interface Options
Figure F-2 shows the rear panel of FCD-E1 with the IR-ETH/Q interface options.
Table F-1 lists the module's RJ-45 connector pinout.
CONTROL-DTE
~1 00 -2 40 VAC
1A T 250V
POWER
01
CH 1
CH 2
A
CT
LINK
ERR
10BASE-T
Figure F-2. IR-ETH/Q Ethernet Bridge, 10BaseT Rear Panel
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