Nortel Networks BCM1000 ASM 8/ASM8+ switch settings, Settings System New 3.0 system Upgraded to

Chapter 7 Setting media bay module DIP switches 99

ASM 8/ASM8+ switch settings

For systems running software prior to BCM 3.0, only two ASM units can share a DS30 bus, using offset 0, 1 or 2. BCM 3.0 software introduced the concept of double density, which allows you to install an ASM8/ASM8+ on all four offsets on DS30 02 to 05. DS30 06 and 07 remain in single density mode for the default Partial Double Density (PDD) system. This means that only two ASM8/ASM8+ modules would be supported on these DS30 blocks unless the system is changed to Full Double Density (FDD). ASM8+ modules can also support firmware download on systems running BCM 3.6 and newer software. Refer to “ASM8+ country switch settings” on page 100.

DN numbering sequence: A DS30 bus set to double density has a total of 32 lines available for telephones. On systems upgraded from BCM 2.5/2.5.1, the first 16 lines on the bus do not number consecutively with the second 16 lines on the bus. On systems that were new for BCM 3.0, the 32 lines on the bus do number consecutively.

Table 20 shows the switch settings for each DS30 bus and the dialing numbers (DNs) assigned to each DS30 bus. The table shows settings for a system in FDD. For PDD systems, where DS30 06 and 07 are single density, only two modules can be installed on either bus.

Table 20 ASM8 settings for upgraded 2.5 systems and new 3.0 systems

Select	Select	Enter these switch						To assign these DNs
bus#	offset			settings
		1	2	3	4	5	6	2.5 system	New 3.0 system
								upgraded to 3.0
	0	on	on	on	on	on	on	221-228	221-228
	1
		on	on		on	on	on	228-236	228-236
02				off
	2	on		on	on	on	on	377-384	237-244
			off
	3	on			on	on	on	385-392	245-252
			off	off
	0	on	on on		on	on		237-244	253-260
							off
	1	on	on		on	on		245-252	261-268
03				off			off
	2	on		on	on	on		393-400	269-275
			off				off
	3	on			on	on		401-408	276-284
			off	off			off
	0	on	on	on	on		on	253-260	285-292
						off
	1	on	on		on		on	261-268	293-300
04				off		off
	2	on		on	on		on	409-416	301-308
			off			off
	3	on			on		on	417-424	309-316
			off	off		off

2Custom DN range

Installation and Maintenance Guide