Nortel Networks Video Gaming Accessories 553-3001-211 Manual De Usuario

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NTAK93 D-channel Handler 
Interface daughterboard
Contents
This section contains information on the following topics:
Introduction
The NTAK93 provides the D-channel handler interfaces required by the 
ISDN PRI trunk.
The DCHI performs D-channel Layer 2 message processing and transfers 
Layer 3 signaling information between two adjacent network switches. It is 
mounted on the NTAK09 1.5 Mb DTI/PRI card or the NTBK50 2.0 Mb PRI 
card (installed in the MG 1000S) using standoff reference pins and 
connectors. The NTAK93 daughterboard, when mounted on the NTBK50 
PRI digital trunk card, is addressed in the same slot as the NTBK50. The 
NTAK93 daughterboard can use SDI I/O addresses 1 to 15 and port 1.
The NTAK93 provides the following features and functions:
D-channel interface or DPNSS interface
Special features included for LAPD implementation at DCH: