IBM 3745 Series, Installation And Maintenance Manual

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If any of these items is missing or damaged, contact the place of purchase for
instructions on how to exchange your modem or obtain the missing items.
Installing the Modem
Warning
In order to avoid damages to the unit, before starting the installation, verify the
modem input AC Voltage setting against the power voltage source available at
your wall socket.
If needed, the selector switch can easily be moved to the correct position, using
a screwdriver or a pen:
¹
Switch set to 115 for low voltage range: 90 - 137 VAC.
¹
Switch set to 230 for high voltage range: 180 - 265 VAC.
Step 1. ____Be sure that the power switch located on the modem rear panel is
off (switch in position "O")
Step 2. ____If you are going to use a switched line telecommunication cable, plug
it into the PSTN socket located on the modem rear panel. If this modem
is not being installed in the United Kingdom, connect the other end of the
cable to the telecommunication line.
Step 3. ____If you plan to use a leased line telecommunication cable, plug it into
the LL socket located on the modem rear panel. If this modem is not
being installed in the United Kingdom, connect the other end of the cable
to the telecommunication line.
Step 4. ____Connect the power attachment cord to the AC power socket located
on the modem rear panel and the power plug to a standard 3 pin
grounded ac outlet. Then, if this modem is being installed in the United
Kingdom, connect the telecommunication cables you have attached to the
modem, to the telecommunication lines.
Step 5. ____You are now requested to observe the modem power on sequence.
This is the normal power on sequence:
¹
PWR light is turned on.
¹
SELFTEST RUNNING message is displayed for about 15 seconds.
Set the modem power switch to on (switch in position "I").
If the PWR light is not on and the voltage selector switch is correctly set
and you are sure the power voltage is present at the wall socket, the
modem is defective and should be replaced.
If the message SELFTEST RUNNING is not appearing on the operator
panel within 10 seconds, the modem is defective and should be replaced.
This message remains on the display for about 15 seconds, then it is
changed by the power on sequence.
If the modem is set to the factory defaults, the operator panel shows :
AT CMD ec aa
td_ rd_ dsr_ II_
Figure 1-20. 7858 Operator Panel Display
1-24
3745-XXA 1-24 3746-9X0: 6563 SPIM