Digi AccelePort Xem Hardware Installation Manual page 2

Step One: Plan your setup
An AccelePort Xem system can be set up in a variety of ways. Before you
start your installation, be sure of the following:
Number and type of components. Each Xem host adapter has an EBI
bus onto which you can cable up to four modules (of just one type or
combined PORTS/Xem and Modem/Xem).
Location of components. The first module on the EBI bus can be
located up to five feet from the adapter (the length of the cable that
comes with the system). Additional modules can then be stacked on
top of the first module using the shorter cables provided with the add-
on modules.
Note: The cumulative length of cable from the Xem adapter to the
last module should not exceed ten feet.
To remain in compliance with emissions standards, you must use the
cables that come with the product; the EBI cables cannot be extended.
Before beginning the installation, be sure that you
Peripheral cabling.
have the cables that you will need for the peripherals that you will be
attaching to the modules. PORTS/Xem modules are available with
either RJ-45 or DB-25 connectors for peripheral cabling.
Modem/Xem modules accommodate modular phone line connectors.
You will need to be sure that you have cables of the correct length
and with the right connectors to properly attach the devices you want
to use with each module.
Power requirements. The first two PORTS/Xem modules can obtain
power from the EBI bus. However, as you add PORTS/Xem modules
to the EBI bus you must evaluate whether an auxiliary power supply
will be necessary for the additional modules.
In general, the third and fourth PORTS/Xem modules on the EBI bus
will require auxiliary power.
Note: If there is sufficient power for the module, the LED indica-
tor on the side panel of the PORTS/Xem module will light.
Each Modem/Xem module requires its own power supply.
Before proceeding with the installation, you should determine if there
is a need for auxiliary power supplies (available for purchase from
Digi) and also determine that adequate power is available where mod-
ules will be installed.
Additional information about the Xem system, such as specifications and
cabling details, is provided on the CD-ROM that is packaged with the
host adapter.
Step Two: Install the Xem ISA adapter
Before installing the Xem adapter, you should do the following:
• Check system resources for a free I/O port address. The Xem adapter
uses four bytes of address space on the I/O bus of the computer into
which you are installing it.
• Wear an ESD wrist strap to ground yourself while handling the
adapter. If one is not available, discharge static electricity from your
body by touching an unpainted metal surface, such as the computer's
chassis, prior to handling the adapter.
• Record the adapter serial number, which will enable Digi to provide
you with better service, should the need arise. The serial number label
has this general format:
S/N: (S) XXX XXXXX
• Unplug power from the PC.
Figure 2.
Xem ISA adapter
1. Set the I/O port address of the adapter to one of the following
addresses using the DIP switch at the location indicated in Figure 2:
I/O
1 2
address
104-107h up up down
114-117h up down
124-127h up down down
204-207h down up
224-227h down up down
304-307h down down
324-327h down down down
2. Remove the computer's cover.
3. Locate an available ISA slot in your computer and remove the slot
plate.
4. Insert the adapter into the slot and screw the endplate to the computer
chassis. The endplate must be screwed into the computer chassis to
remain in compliance with Part 15 of FCC rules.
5. Replace the computer's cover.
6. Attach one end of the EBI cable to the connector on the adapter.
Note:
Step Three: Install modules
During this step (and whenever EBI cables are attached or removed from
the modules) the host system must be turned OFF and power must not be
applied to the modules.
1. Position modules at the location you have prepared according to the
plan you developed in
2. Attach the cable from the adapter to the connector labelled
the first PORTS/Xem or Modem/Xem module that is to be connected.
Figure 3.
.
3 4
down
up down
down Figure 4.
up down
If you are cabling multiple modules together, attach a daisy-chain
down
cable to the
end to the
up down
until all modules in the string are cabled.
down
Do not power on the host system yet.
Step One .
Side Panel of PORTS/Xem module
Side Panel of Modem/Xem module
EBI OUT connector of the first module. Connect the other
EBI IN connector of the second module. Continue cabling
EBI IN on