Apogee 2020 Manuel D’Utilisation

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INTERFACE CONTROLLER MODULE 
ETHCX1
 
2020-2 AL4300Series 
5.25.04 
APOGEE LABS, Inc.
 
MODEL 2020 
ETHCX1 
INTERFACE CONTROLLER MODULE 
 
2020.1 
INTRODUCTION 
2020.1.1 PURPOSE OF 
MODULE 
The Apogee Labs Model 2020 ETHCX1 module provides a remote control facility for a AL4300 
Series chassis using an Ethernet 10/100 Base-T link.   This facility supports all the remote 
control commands listed in the individual manuals for the AL4300 modules installed in the 
chassis.  These commands are ASCII coded control and status interrogation commands, each of 
which are individually Acknowledged.  This is designated as the Network Native ASCII Transfer 
or NNAT remote control mode. 
2020.1.2 MODULE OVERVIEW 
The control processor on the ETHCX1 receives incoming data from the Ethernet.  Completed 
commands received are then sent to the Front Panel Controller of the chassis via the internal 
ALISDT bus.  The Front Panel Controller in turn directs the data to the selected module.  This 
target module processes the command and provides a response back to the Front Panel 
Controller, which forwards this to the ETHCX1.  The ETHCX1 holds the response until 
interrogated from the Ethernet. 
The ETHCX1 setup consists of assigning the IP Address, Netmask, and Gateway on the 
ETHCX1 by way of the Ethernet.  Initial access to the module is made using the default values 
indicated in Table 2.  Once set, the values are retained in the non-volatile memory on the card 
and are restored during each unit power-on sequence. 
The following block diagram shown in Figure 1 presents a simplified overview of this module: 
TX +
TX -
RX +
ETHERNET
FRAMER
u Controller
Bus
Interface
1
2
3
6
RJ-45
RX -
Ethernet
Magnetic
Matching
Network
AL
ISD
T
 
Figure 1 - ETHCX1 Simplified Block Diagram