9
Modem/ISDN port
The CPU 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 CPU 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 CPU 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 CPU IP.
COM1
MODE
M
COM2
POWER
CONTROL
INDOOR
USE
ONL
Y
KVM
CONSOLE
5V
1
2
ON
2A
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 CPU 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 CPU IP.
COM1
MODE
M
COM2
POWER
CONTROL
INDOOR
USE
ONL
Y
KVM
CONSOLE
5V
1
2
ON
2A
COMPUTER
/ KVM
SWITCH
2 Connect the IEC connector of the supplied country-specific power lead to
the socket of the power supply.
3 Connect the power lead to a nearby main supply socket.
