860 NTAK091.5 Mb DTI/PRI card
The NTAK09is 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 NTAK09can
be equipped with two daughterboards: the NTAK20 clock controller and the
NTAK93/NTBK51D-Channel handler interface.
The NTAK09is being replaced by the NTRB21 - TMDI (DTI/PRI/DCH) which
is described in "NTRB21 DTI/PRI/DCH TMDI card" (page 1053).
The NTAK091.5 Mb DTI/PRI digital trunk card is a standard-size IPE circuit
card.
ATTENTION
IMPORTANT!
Each Media Gatewaythat has adigital tr unk must havea clock controller clocked
to an external reference clock.
Note: Clocking slips can occur between Media Gateways that are
clocked from differentCOs, if the COs are not synchronized. The slips
can degrade voice quality.
The NTAK09provides 1.5Mb ISDN primary rate interface and digital trunk
interface capability. The NTAK09can be equipped with two daughterboards:
the NTAK20clock controller and the NTAK93/NTBK51 D-channel handler
interface.
Digital trunk cards are supported only in the Media Gateway butnot in the
Media Gateway Expansion. Up to four digital trunk cards are supported in
each Media Gateway. The NTAK09card can be installed in Slot 1, 2, 3,
and 4 of the Media Gateway.
In North America, the NTAK09 can be replaced bythe NTRB21 – TMDI
(DTI/PRI/DCH) card, which is described in "NTRB21 DTI/PRI/DCH TMDI
card" (page 1053).
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 Figure 276
"NTAK09DTI/PRI circuit card" (page 861).
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright© 2003-2008, Nor tel Networks
.