User guide

8 CommPlete 4000 Communications Server Quick Start Guide
Installing Your CommPlete 4000
ISI Board Cabling
Each Intelligent Serial Interface card (ISI5634PCI/8, ISI5634UPCI/8, ISI4608PCI, ISI4608UPCI or
ISIHP-2S/2U) takes up one physical slot in the CommPlete 4000. Depending on your configuration,
you may have as many as four of these cards (see Figure 3). Attach the line cords (RJ-12 for analog
phone lines; RJ-45 for UPCI or ISDN phone lines) to the line connectors on the ISI card(s) at the
back of your CommPlete 4000 as shown in Figure 5.
ISI5634PCI/8 Board
120
RJ12 Line Jacks
MODEM
LINE
5-8
MODEM
LINE
1-4
RJ45 Line Jacks
Modem
Line
1-4
Modem
Line
5-8
ISI5634UPCI/8
Figure 5: ISI Board Connectors (ISI5634PCI/8 and ISI5634UPCI shown;
other MultiModem ISI cards differ)
Note: Any cables connected to the CommPlete 4000 should be shielded to reduce
interference.
Note that the two top expansion slots share a data interrupt signal on the PCI bus. Consequently, if
both slots are used, they must be occupied with identical devices (and the device drivers must be
identical). This is a constraint of PCI bus architecture. Also, the device drivers must support
“interrupt-sharing.” The drivers for the MultiTech ISI card do support interrupt-sharing.
120
Shared Interrupt
for Top Slots.
Identical Devices Required.
You can not mix PCI &UPCIcards
in these two slots, because they
use different drivers.
Figure 5b. Top Slots Require Identical Devices