
9-12 Installing the EC 11 to Meridian 1 Option 11 switch interface
Installing the SDI/DCH card
Standard 1.0 Option 11 EC Installation and Maintenance Guide November 1999
Installing the SDI/DCH card
Introduction
The Application Module Link (AML) communicates
commands and status information between the Option 11
switch and the EC 11. You must configure the NTAK02
SDI/DCH circuit card to provide the necessary ESDI port on
the Option 11 switch.
Note: Only ports 1 and 3 can be configured as ESDI ports.
Before inserting the NTAK02 SDI/DCH card into its slot, you
must set the switches and attach the jumper plugs. The SDI/
DCH switches allow you to configure the four SDI ports as a
combination of the following:
•SDI
• ESDI
• DCH/DPMDD
The jumper plugs allow you to configure the interfaces as
RS-232 or RS-422, DTE or DCE. For use with the EC 11,
a port must be configured to RS-232 and DCE.
Installing a SDI/DCH
card
To install the SDI/DCH card, follow these steps.
Step Action
1 Set the switches according to the following table to
configure Port 1 for ESDI so that it can be used on
an AML link. (The shaded areas show Port 1
configured to ESDI.)
Port 0 Port 1 SW 1-1 SW 1-2
SDI DCH/DPNSS OFF OFF
SDI DCH/DPNSS OFF ON
— ESDI ON ON
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