16
Optional Network Connections (Continued)
Network Confi guration for AccessBase2000 Programming
If the system is going to be programmed using Linear’s AccessBase2000
software, units communicate with each other on the network through
RS-485 cable connections.
AccessBase2000 does not support unit-to-unit network communications
through modems, only RS-485 cable. AccessBase2000 does support
modem communications from the PC to the eight Node #1 “master” units
on an AccessBase2000 network.
Refer to the fi gure below for design details of a fully implemented
AccessBase2000 network. The fi gure shows eight networks, each with
eight nodes, for a total of 64 units.
RS-485 CABLE CONNECTION
NETWORK NODE #1 ALWAYS
REQUIRES A MODEM FOR
REMOTE PROGRAMMING
MODEM
UNIT
(NETWORK NODE)
FULL ACCESSBASE2000 NETWORK
NODE
"
A1
"
NODE
"
A2
"
NODE
"
A3
"
NODE
"
A4
"
NODE
"
A5
"
NODE
"
A6
"
NODE
"
A7
"
NODE
"
A8
"
NETWORK
"A"
NODE
"
B1
"
NODE
"
B2
"
NODE
"
B3
"
NODE
"
B4
"
NODE
"
B5
"
NODE
"
B6
"
NODE
"
B7
"
NODE
"
B8
"
NODE
"
C1
"
NODE
"
C2
"
NODE
"
C3
"
NODE
"
C4
"
NODE
"
C5
"
NODE
"
C6
"
NODE
"
C7
"
NODE
"
C8
"
NODE
"
D1
"
NODE
"
D2
"
NODE
"
D3
"
NODE
"
D4
"
NODE
"
D5
"
NODE
"
D6
"
NODE
"
D7
"
NODE
"
D8
"
NODE
"
E1
"
NODE
"
E2
"
NODE
"
E3
"
NODE
"
E4
"
NODE
"
E5
"
NODE
"
E6
"
NODE
"
E7
"
NODE
"
E8
"
NODE
"
F1
"
NODE
"
F2
"
NODE
"
F3
"
NODE
"
F4
"
NODE
"
F5
"
NODE
"
F6
"
NODE
"
F7
"
NODE
"
F8
"
NODE
"
G1
"
NODE
"
G2
"
NODE
"
G3
"
NODE
"
G4
"
NODE
"
G5
"
NODE
"
G6
"
NODE
"
G7
"
NODE
"
G8
"
NODE
"
H1
"
NODE
"
H2
"
NODE
"
H3
"
NODE
"
H4
"
NODE
"
H5
"
NODE
"
H6
"
NODE
"
H7
"
NODE
"
H8
"
NETWORK
"B"
NETWORK
"C"
NETWORK
"D"
NETWORK
"E"
NETWORK
"F"
NETWORK
"G"
NETWORK
"H"
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