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1-4
C
1: I
HAPTER
NTRODUCTION
Hardware
Description
Front Panel
Rear Panel
The following sections describe the system hardware components.
The AccessBuilder 4000 system consists of a chassis assembly which
contains one of two available main processor boards, power supply,
indicator lights, and two slots for I/O cards of your choice. The main
processor board is available with either an Ethernet, or a Token Ring
LAN interface. Figure 1-2 shows the front and back of the system.
Remote Access Server
CONSOLE
SLOT 2
CONSOLE
BNC
BNC/AUI/TPE
SLOT 2
Figure 1-2 The AccessBuilder 4000 Front and Rear Panels
The front panel of the AccessBuilder chassis has three LEDs, which
indicate Power, Status, and Activity, as shown in Figure 1-2.
Main Processor and I/O Card Slots. AccessBuilder has three slots in
the rear. The top slot contains the main processor board (Ethernet or
Token Ring) and the two smaller slots below are for the I/O cards. The
position of the slots and their numbering scheme are also shown in
Figure 1-2.
The main processor board has Flash ROM for program storage, DRAM
for software operation, NVRAM (non-volatile RAM) for configuration
storage, and built-in Ethernet or Token Ring capability. The Ethernet
version provides AUI, BNC, and 10BaseT connectors (switch selectable),
as shown in Figure 1-3 to connect to the on-board Ethernet port. The
Token Ring version provides connectors for shielded twisted pair (STP),
Front Panel
TOKEN RING
STP
4M/16M
Rear Panel Token Ring
ETHERNET
TPE
AUI
Rear Panel Ethernet
AccessBuilder
4000
SYSTEM STATUS
SYSTEM STATUS
Activity
Status
Power
110-240 VAC
50-60 Hz 1A
UTP
SLOT 1
110-240 VAC
50-60 Hz 1A
SLOT 1
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