Card-Lan Interface - Nortel Enterprise 1000 Reference Manual

Table 40
Settings for the DCHI dip switch (SW1)
Switch
S1-1
S1-2

Card-LAN interface

Succession Communication Server for Enterprise 1000 Circuit Card Reference Guide
single port which directly interfaces to the PRI motherboard. See Table 40 on
page 165.
Function
—
F/W Mode
A Dual Port UART handles the functions of the serial ports for the Card-LAN
serial link test port interface. The test interface is an asynchronous 4800 bps
8 bit connected to port A of the UART. The card-LAN interface is an
asynchronous 19.2 kbps 9 bit start/stop connected to port B of the UART.
The connection to the test port is available at the backplane/MDF connector.
The signals at this port conform to the EIA RS-232C standard.
NTBK50 2.0 Mb PRI card
On
—
DPNSS (not sup-
ported at this time)
Page 165 of 236
Off
—
DCHI