User Guide
NSM–5
Service Software Instructions
PAMS Technical Documentation
Page 7
Issue 1 02/2002
Nokia Corporation
Modular Cable Jack Connector (available e.g. as AMP code: P/N 555052–1)
*) Note: A number of PC’s of an older generation use the Intel, National Semiconductor, or United
Microelectronics IC 8250 as the serial port UART. This is a comparatively inefficient circuit for current
purposes and does not necessarily support the M2BUS adapter at 9600 baud. The newer UART’s
NS16450 and NS16550AF of National Semiconductor offer solutions for these problems.
Installation
Mechanical Connections
Caution: Make sure that you have switched off the PC and the printer
before making connections.
Caution: Do not connect the PKD–1 key to the serial port. You may
damage your PKD–1 !
The software controls the phone via a separate adapter connected to the
serial port of the PC, and to the telephone’s M2BUS (DAU–9S).
Attach the dongle PKD–1 to the parallel port 1 (25–pin female D–connec-
tor) of the PC. When connecting PKD–1 to the parallel port, be sure that
you insert the computer side of the PKD–1 to the PC (male side). If you
use a printer on parallel port 1, install the PKD–1 between the PC and
your printer cable.
The PKD–1 should not affect devices working with it. If some errors occur
(errors in printing are possible) please try printing without the PKD–1. If
printing is OK without the PKD–1 please contact your dealer. We will offer
you a new PKD–1 in exchange for your old one.










