NEC ELECTRA ELITE IPK II, Руководство пользователя

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Electra Elite IPK II Document Revision 4C
ISDN Compatibility 2 - 637
PRI ability requires the installation of DTI-U40 ETU with PRT Firmware version 5.XX or
higher. Each ETU (also called a PRI circuit) provides 24 PRI channels (23B + D) 4 with 64K
Clear Channel response. The T1/PRI Interface ETU uses a single slot. When installed, the
T1/PRI Interface ETU uses the first block of 24 consecutive trunks. For example, if you
have an COI (8)-U( ) ETU installed for trunks 1~8, the T1/PRI Interface ETU automatically
uses trunks 9~32. If you have COI (8)-U( ) ETUs installed for trunks 1~8 and 17~24, the T1/
PRI ETU uses trunks 25~48. The T1/PRI Interface cannot use trunks 9~16 (even if
available) since they are not part of a consecutive block of 24 trunks. (
Version 1100 or
lower and Version 1500 or higher when PRG 10-39-01 is Disabled.)

When using fractional PRI, the card comes up as zero ports until PRG 10-03-06 is set to
the 4/8/12/16/20/24(auto), and then reset.

If fractional PRI has the number of ports changed, the Trunk Port number might change if
they would become split or could fit into an empty gap of trunk ports. For example, if you
have a COI(8) ETU for Trunks ports 1~8 and 17~24 and the PRI (12 ports) was assigned
as 25~36 and the PRI is changed to be eight ports instead of 12 ports, the new trunk port
numbers would be 9~16 because the eight ports can now fix into the gap without being split
ports. Another example, if you have a COI(8) ETU for Trunks ports 1~8 and 17~24 and the
PRI (8 ports) was assigned as 9~16 and then you change the PRI to be 12 ports instead of
eight, the new trunk ports would be 25~36 because the ports would have to be split to keep
the original port numbers, and this is not supported. (
Version 1500 or higher is required
when PRG 10-39-01 is Enabled.)

If using a CSU/DSU, PRG 10-03-12 must be set to Short, and PRG 10-03-13 set to 0. If not
using a CSU/DSU, PRG 10-03-12 must be set to Long, and PRG 10-03-13 must be set to
1~7 or anything other than 0.

Restrictions for Calling Party Name:
The Electra Elite IPK II supports receiving the name from the Network in supported formats
only and cannot send the Calling Name. Refer to
Table 2-28 Restrictions for Calling Party
Names .
Table 2-28 Restrictions for Calling Party Names
Protocols Name Delivery Formats
NI-2 Facility Information Elements
4ESS (AT&T Custom) Not Supported
AT&T5ESS Lucent Custom Facility Information Element
DMS-100 (Custom)

Display Information Element

DMS-100 (National; ISDN)

Facility Information Element


Nortel Specification NIX-A211-1

Nortel Specification NIS-A233-1