Figure 85 ntbk50 with switch locations, Set the switches on the ntbk50, Switch sw1 - dchi configuration (ntak93 only) – Nortel Networks NN43001-301 User Manual

Page 267

Install the NTBK50 PRI card

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Set the switches on the NTBK50

The NTBK50 incorporates three onboard dip switches. The following tables
provide information on the various settings and related functions of these
switches.

Note: The ON position for all the switches is positioned toward the
bottom of the card. This is indicated by a white dot printed on the board
adjacent to the bottom left corner of each switch.

Figure 85
NTBK50 with switch locations

Set the switches on the circuit card according to the requirements of your
installation.

Switch SW1 - DCHI configuration (NTAK93 only)

This switch enables and disables the DCHI and sets the operating mode of
the DCHI. It is only used if an NTAK93 D-channel handler daughterboard is
being used. It has no effect when using the NTBK51 DDCH daughterboard.

Nortel Communication Server 1000

ISDN Primary Rate Interface Installation and Commissioning

NN43001-301

02.03

Standard

Release 5.5

7 December 2007