The AdderLink IP provides a serial port specifically for you to connect either a
modem or ISDN terminal adapter. This can be used as a primary, secondary or
backup access port for remote systems, as best suits your overall configuration.
IMPORTANT: When the AdderLink IP is accessible from the public Internet or dial
up connection, you must ensure that sufficient

security measures

are employed.

To connect a modem or ISDN port

1 If possible, disconnect power from the AdderLink IP and the modem or ISDN

adapter.

2 Connect a suitable serial modem (non-crossover) cable to the serial port on

the modem/ISDN adapter.

3 Connect the other end of the serial cable to the port labelled COM1 at the

rear of the AdderLink IP.

COM1

MODE

COM2

POWER

CONTROL

INDOOR

USE

ONL

KVM

CONSOLE

COMPUTER

/ KVM

SWITCH

Note: The default serial port speed is 115200K and a standard Hayes-compatible
auto-answer string is sent during startup. The default startup string is
‘ATZHS0=1’. Both the serial port speed and startup string settings can easily be
altered during the local or remote configuration - see

Initial configuration

for

more details. The other serial settings are fixed at: No parity, 8 bit word and 1
stop bit.

Power supply connection

The AdderLink IP is supplied with a single power supply and an appropriate
country-specific IEC power lead. There is no on/off switch so operation begins as
soon as the power supply is connected.

To connect the power supply

1 Connect the low voltage output connector from the power supply unit to

the power socket on the rear panel of the AdderLink IP.