Nortel Networks 553-3001-211 manual System software

Page 384 of 894 NT6D80 MSDL card

Figure 81

MSDL functional block diagram

		Application	D-Channel
		Module Link
		System	System
		AML Handler	DCH Handler
		MSDL Handler
System software				CPU Bus
MSDL software modules
	Boot Code
	& Loader	System Interface Module
	Modules
P
S
O		AML Loadware	DCH Loadware
S
+
		Physical Layer (Layer 1) Handler
	Port 0	Port 1	Port 2	Port 3
	Meridian Link	Meridian Mail	PRI Trunk	PRI Trunk
				553-5433
553-3001-211	Standard 2.00	September 2004