Channel Service Units - Nortel Meridian 1 Option 11C Manual

Page 38 of 100 DTI Implementation
Hardware Requirements
Cables

Channel Service Units

553-3011-310 Standard 13.00
This chapter covers the most common type of Nortel Networks DTI
installation, a 24-channel Digital Trunk Interface (DTI) installation between
two Meridian 1 systems, or a Meridian 1 and a central office.
Since Release 25.30 software, digital trunks are supported in Option 11C IP
expansion cabinets.
To implement DTI on the Meridian 1 Option 11C, the hardware listed in
Table 5 on page 38 is required:
Table 5
DTI hardware
Item
NTRB21
NTAK09
NTAK20
NTBK04
The following cables are required for DTI connections:
• DTI to external T1 cable
• NTBK04 carrier cable
• NT8D97 50 foot extension (if needed)
When connecting the DTI/PRI to the public network, Channel Service Units
(CSUs) are required by most operating companies. One CSU is required per
DTI. Suitable CSUs which support 64 Kbps clear and Bipolar 8 Zero
Substitution (B8ZS) are available from vendors such as Verilink, Digitalink,
Kentrox and Tellabs.
January 2002
Description
DTI/PRI TMDI card.
DTI/PRI Circuit card
Clock Controller Daughter board.
Note: The Option 11C supports only one
active Clock Controller per system
Carrier Cable