Philips DBS-EX23-530 manual Trunk Assignments for Single-Cabinet Systems

Installation Guidelines

Trunk Assignments for Single-Cabinet Systems

•Programming is not required to associate trunk ports with slot locations. However, you must use programming to specify that a combination of ISDN and analog trunks is installed, and you must also specify how many ISDN channels are used.

•Fractional ISDN per port assignments require the VB-43511A version of the loop start trunk card. The older VB-43511 version may be used with fractional ISDN but requires that the trunks be assigned in blocks of 8.

Table 2-2. ISDN and analog trunk assignments, DBS 40
			Trunk		Fractional ISDN		Fractional ISDN
			Number		using 16 Channels		using 8 Channels
			1			ISDN channel 16		Analog trunk 1
			↓			↓		↓
			8			ISDN channel 9		Analog trunk 8
			9			ISDN channel 8		ISDN channel 8
			↓			↓		↓
			16			ISDN channel 1		ISDN channel 1
			Note: Since the	DBS 40 supports a maximum of 16 trunks, all 23
			channels of the ISDN cannot be used.
Table 2-3. ISDN and analog trunk assignments, DBS 72
	Trunk	23-Channel ISDN				Fractional ISDN		Fractional ISDN
	Number					using 16 Channels		using 8 Channels
	1		Analog trunk 1			Analog trunk 1		Analog trunk 1
	2		ISDN channel 23			Analog trunk 2		Analog trunk 2
	↓		↓			↓		↓
	8		ISDN channel 17			Analog trunk 8		Analog trunk 8
	9		ISDN channel 16			ISDN channel 16		Analog trunk 9
	↓		↓			↓		↓
	16		ISDN channel 9			ISDN channel 9		Analog trunk 16
	17		ISDN channel 8			ISDN channel 8		ISDN channel 8
	↓		↓			↓		↓
	24		ISDN channel 1			ISDN channel 1		ISDN channel 1

Revised April 2000 DBS-EX23-530 2-5