NT5D33 and NT5D34 Lineside E1 Interface cards Page 271 of 906
Circuit Card Description and Installation
After the card has been installed, display the dip switch settings using the MMI command Display Configuration (D C). See “Man-Machine E1 maintenance interface software” on page284 for details on this and the rest of the available MMI commands.
Installation
Because of the wiring in some of the system modules and cabinets, the LEI will only work in certain card slot pairs. These restrictions depend on the type
Table 100
ELEI card – E1 Switch 2 (S2) dip switch settings
Characteristic Selection
Switch
Position
Switch
Setting
Factory
Default
E1 framing CRC-4 Disabled
CRC-4 Enabled
1ON
OFF
ON
E1 coding AMI
HDB3
2ON
OFF
OFF
NOT USED leave ON 3ON ON
NOT USED leave ON 4OFF OFF
Mode LEI Mode
ELEI Mode
5OFF
ON
OFF
Line processing on E1
link failure
On-hook
Off-hook
6ON
OFF
OFF
Daisy-chaining to MMI YES
NO
7ON
OFF
OFF
MMI master or slave Master
Slave
8ON
OFF
ON