Physical Description - Nortel Circuit Card 311 Reference

860 NTAK09 1.5 Mb DTI/PRI card
The NTAK09 is a standard-size intelligent peripheral equipment circuit card
in the Option 11C main and IP expansion cabinets. It provides 1.5Mb ISDN
primary rate interface and digital trunk interface capability. The NTAK09 can
be equipped with two daughterboards: the NTAK20 clock controller and the
NTAK93/NTBK51 D-Channel handler interface.
The NTAK09 is being replaced by the NTRB21 - TMDI (DTI/PRI/DCH) which
is described in
The NTAK09 1.5 Mb DTI/PRI digital trunk card is a standard-size IPE circuit
card.
IMPORTANT!
Each Media Gateway that has a digital trunk must have a clock controller clocked
to an external reference clock.
The NTAK09 provides 1.5Mb ISDN primary rate interface and digital trunk
interface capability. The NTAK09 can be equipped with two daughterboards:
the NTAK20 clock controller and the NTAK93/NTBK51 D-channel handler
interface.
Digital trunk cards are supported only in the Media Gateway but not in the
Media Gateway Expansion. Up to four digital trunk cards are supported in
each Media Gateway. The NTAK09 card can be installed in Slot 1, 2, 3,
and 4 of the Media Gateway.
In North America, the NTAK09 can be replaced by the NTRB21 – TMDI
(DTI/PRI/DCH) card, which is described in
card" (page
Contact your system supplier or your Nortel Networks representative to
verify that this card is supported in your area.

Physical description

The DTI/PRI card uses a 9:5" by 12.5" multilayer printed circuit board
with buried power and ground layers. The clock controller and D-channel
daughterboards are fastened by standoffs and connectors. See
"NTAK09 DTI/PRI circuit card" (page
Copyright © 2003-2008, Nortel Networks
.
"NTRB21 DTI/PRI/DCH TMDI card" (page
Note: Clocking slips can occur between Media Gateways that are
clocked from different COs, if the COs are not synchronized. The slips
can degrade voice quality.
1053).
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
ATTENTION
"NTRB21 DTI/PRI/DCH TMDI
861).
1053).
Figure 276