Multi-Tech Systems Hub - Manual (Page 9)

CommPlete 4000 Communications Server User Guide 9
Chapter 2 - Installing Your CommPlete 4000
If the ISI4608PCI or ISI4608UPCI is used, connections between it and external modems are made
via the supplied octopus cable going between the DB-78 connector on the ISI4608PCI board and the
DB-25 connectors on the individual modems. (RJ-11 connectors connect the modems to the phone
jacks.)
If the ISIHP-4S or -4U are used, each ISIHP card accepts as many as four RJ-45 connectors to
accommodate ISDN BRI lines. (The modem connections that accommodate analog calls are internal
to the ISIHP board. That is, when the V.90 modem module is installed, each ISDN B-channel
connects to a V.90 modem via a digital connection. These digital connections allow analog callers
using 56K modems to receive 56k downloads from the ISIHP’s modems.)
The SBC board has cable connectors for adding a monitor, a keyboard, and a mouse or other serial
device (on COM1), and network connection. Cable connectors and boards are shown in Figure 2-1.
ISI Boards
120
Cover Mounting
Screws
Cover
COM 2
(DB15)
Printer Port
(DB25)
SBC Backplane
Power Supply
MODEM Line 1-4
MODEM Line 1-4 MODEM Line 5-8 MODEM Line 5-8
Figure 2-1. Back Panel Connectors
SBC Board Cabling
The SBC board is located in the CommPlete 4000 as shown in Figure 2-1. The SBC board cabling
may involve connection to four back panel connectors (see Figure 2-2). The back panel connectors
are:
• Video connector
• COM 1 connector
• Keyboard connector
• Network connector
SBC Board
120
6-Pin Circular Jack
(To External Keyboard)
DB9 (male) Connector
(to COM 1 Serial Port)
15-Pin Video
Connector
(to External
Display Monitor)
RJ45 Connector
(to Network Hub)
Fig. 2-2. SBC Backplane Connections
The right connector (COM 1) on the SBC’s backplane typically accommodates a mouse or other
pointing device. The middle receptacle connects the video cable to a monitor. The left round
connector is for the keyboard. The SBC connector pinouts are shown and defined in Appendix A.
Note: Any cables connected to the CommPlete 4000 should be shielded to reduce
interference.