Signaling interface, Interconnections, Cept interface – Nortel Networks 1000 User Manual

Page 788

788

NTAK10 2.0 Mb DTI card

Signaling interface

Interconnections

The external connection is through a 50-pin MDF connector with the
NTBK05 carrier cable A0394217.

The external interconnection is through a 50-pin MDF connector with a
NTBK05 carrier cable A0394217.

The external connection is through a 50-pin MDF connector with the
NTBK05 carrier cable A0394217.

CEPT interface

For the Conference of European Postal Communications (CEPT) interface,
the connection to the external digital carrier is through the NT5K85 DTI
cable assembly. It converts the 120 ohms D-connector to 75 ohms coaxial
cable. The impedance is switch set. The switch-settings table at the end
of this chapter describes the options. See

Table 332 "2 MB DTI switch

options" (page 788)

If a coaxial interface is required, use NT5K85 in conjunction with the
NTBK05.

Table 332
2 MB DTI switch options

Switch

Off
(Switch Open)

On
(Switch Closed)

S1-1

—

S1-2

CC Enabled

CC Disabled

S2-1

120 ohms

75 ohms

S2-2

75 ohms

120 ohms

S3-1

non-French Firmware

French Firmware

S3-2

—

For the Conference of European Postal Communications (CEPT) interface,
the connection to the external digital carrier is through NT5K85 DTI cable
assembly A0392021. It converts the 120ohm D-connector to 75ohm coax.
The impedance is switch set. See the switch-settings table at the end of
this chapter for options.

If a coax interface is required, use NT5K85 in conjunction with the
NTBK05.

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008