Dchi configuration for ntak93 only (sw1) – Nortel Networks 1000 User Manual

Page 886

886

NTBK50 2.0 Mb PRI card

•

receive clock output

•

transmit clock output

The receive and transmit clocks can be of slightly different bit rates from
each other as determined by the transmit and receive carrier clocks.

The NTBK50 supports a D-Channel Handler Interface (DCHI)
daughterboard. It is equivalent to a single port of an NTAK02 SDI/DCH
card. The NTBK50 also supports a Downloadable D-Channel Handler
interface (DDCH) daughterboard. The DDCH brings MSDL D-channel
capability to the CS 1000 system.

DCHI Configuration for NTAK93 only (SW1)

The NTAK93 DCHI daughterboard can be operated in two separate modes
defined by an on-board dip switch. It can operate in a standard DCHI
mode common to most ISDN standard countries. It can also operate in a
DPNSS mode, which is not supported at this time. The DDCH supports
only a single port which directly interfaces to the PRI motherboard. See

Table 380 "Settings for the DCHI dip switch (SW1)" (page 886)

Table 380
Settings for the DCHI dip switch (SW1)

Switch

Function

Off

S1-1

—

S1-2

F/W Mode

DPNSS

DCHI

The NTAK93 DCHI daughterboard can be operated in two separate modes
as defined by an on-board dip switch. It can operate in a standard DCHI
mode common to most ISDN standard countries. It can also operate in a
U.K. specific mode using the DPNSS format. The DDCH supports only a
single port which directly interfaces to the PRI motherboard.

Table 381
Settings for the DCHI dip switch (SW1)

Switch

Function

Off

S1-1

—

S1-2

F/W Mode

DPNSS

DCHI

Table 382 "Settings for the DCHI dip switch (SW1)" (page 887)

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008