Nortel Networks BCM200, 400 4.0 manual Assigning line and extension numbers, DTM switch settings

Chapter 8 Installing a media bay module (MBM) 121

4You are now ready to install the MBMs into the BCM system. Refer to “Installing optional telephony equipment” on page 173 for details.

Tip: Create a label with the DS30 bus and DIP switch settings. Affix the label to the front of the MBM as a quick reference during maintenance activities.

Assigning line and extension numbers

The switch settings on the MBM determine the line numbers and extension numbers the MBMs use. The tables in this section show the correspondence between DS30 numbers, switch settings, and the line and extension numbers for each type of MBM. The DS30 number and switch settings correspond with Table 28.

DTM switch settings

Although DTMs have more than 16 lines, they occupy only one DS30 bus per DTM.

Table 30 shows the switch settings for each DS30 bus, and the resulting line assignments.

Table 30 DTM switch settings (T1)

Select

Enter these switch settings

To

Select

Enter these switch

To assign

assign

settings

DS30

DS30

these

these lines

bus

1

2

3

4

5

6

bus

1

2

3

4

5

6

lines

2

on

on

on

on

on

on

211-234

5

on

on

on

on

off

off

121-144

3

on

on

on

on

on

off

181-204

6

on

on

on

off

on

on

91-114

4

on

on

on

on

off

on

151-174

***7

on

on

on

off

on

off

61-84

***If your

system is configured with a 3/5 DS30 split, DS30 bus 7 is not available.

Table 31 shows the switch settings for each DS30 bus, and the resulting line assignments.

Table 31 DTM switch settings (North American PRI)

Select

Enter these switch settings

To

Select

Enter these switch settings

To assign

assign

DS30

DS30

these

1

2

3

4

5

6

these

1

2

3

4

5

6

bus

bus

lines

lines

2

on

on

on

on

on

on

211-233

5

on

on

on

on

off

off

121-143

3

on

on

on

on

on

off

181-203

6

on

on

on

off

on

on

91-113

4

on

on

on

on

off

on

151-173

***7

on

on

on

off

on

off

61-83

***If your system is configured with a 3/5 DS30 split, DS30 bus 7 is not available.

BCM200/400 4.0 Installation and Maintenance Guide