AT&T DS1/DMi/ISDN-PRI manual DS1 Channel Slot/Circuit

ADMINISTRATION OPTIONS AND REQUIREMENTS — GENERIC 2 7-93

TABLE 7-10.DS1/ISDN-PRI Administration — Channel Versus Trunk Assignments

DS1 Channel	Slot/Circuit	DS1 Channel	Slot/Circuit
1	5/0 or 18/0	13	0/0 or 13/0
2	6/0 or 19/0	14	1/0 or 14/0
3	7/0 or 20/0	15	2/0 or 15/0
4	5/1 or 18/1	16	0/1 or 13/1
5	6/1 or 19/1	17	1/1 or 14/1
6	7/1 or 20/1	18	2/1 or 15/1
7	5/2 or 18/2	19	0/2 or 13/2
8	6/2 or 19/2	20	1/2 or 14/2
9	7/2 or 20/2	21	2/2 or 15/2
10	5/3 or 18/3	22	0/3 or 13/3
11	6/3 or 19/3	23	1/3 or 14/3
12	7/3 or 20/3	24	2/3 or 15/3

When the traditional module DS1-MFAT carrier is configured with two DS1s, physical slots 3, 8, 16, and 21 are available for other applications. If only one DS1 is configured, then six additional slots are available for other applications.

To minimize confusion and eliminate the need for maintaining elaborate trunk to channel cross- reference tables, trunk group member assignments should match the DS1 channel assignments; for example, trunk group member 1 on channel 1. For example, using procedure 116, word 1, refer to table 7-10, DS1/ISDN-PRI Administration — Channel Versus Trunk Assignments, to determine which slot and circuit to translate for channel 1. Repeat this procedure by sequentially selecting DS1 channels (2, 3, and so on) and translating the appropriate slot and circuits as required.

Fields 1-5	These fields are used to translate the equipment location, including slot and circuit
	(channel) location, and to associate the equipment location (channel) with the
	particular trunk group translated in field 6.
Field 6	Translates the trunk group. Permitted encodes must be numbers with the range of
	18 through 999.
Field 7	Translates a particular number that functions as the night service number. The
	digits depend on the particular application and its numbering plan.
Field 8	Disables a channel’s signaling. This disable function is required for establishing a
	dedicated switched connection. Field encodes and their descriptions are:

0Signaling is enabled (default value).

1Signaling is disabled. This option is only translated for the channels that is used as a dedicated switched connection.

Field 9Not applicable for ISDN-PRI.