American Auto-Matrix Matrix Hardware Installation Manual page 6

1.3 H
ARDWARE
Below is an illustration of the hardware layout of the Matrix Area Controller. The device includes
connection ports for Main Power, EIA-485 network connectivity and Ethernet connectivity. Depending on
the model of Matrix Area Controller you have purchased, your application may involve using one of the or
both EIA-485 network ports.
Power Input
RS-485
RS-485
10 / 100
Ethernet
USB
RS-232
1.3.1 U P
NUSED ORTS
The Matrix Area Controller contains an RS-232 port, as well as dual USB ports. These ports currently
contain no functionality relative to the Matrix Area Controller itself, but are reserved for future use and
applications.
1-4
L
AYOUT
LINE
12-29 VDC / VAC
2.7A (MAX)
J1
PWR
PWR
J3
TERM BIAS
N+ SW3
NET +
NET -
N-
SH
SH
TXD
RXD
PERR
BERR
RS-485
J2
TERM BIAS
N+ SW2
NET +
NET -
N-
SH
SH
TXD
RXD
PERR
BERR
RS-485 A
TELCO J5
S2 S1
Figure 1-2 - Matrix Area Controller Board Layout
Matrix Area Controller Hardware Installation Guide (3/6/2009)
3.3V
5V
24V
U2
SW1
ATTN
RS-485 Termination -
SW2.1 and SW3.1
Termination Off
(Factory Setting)
RS-485 Biasing -
SW2.2 and SW3.2
Biased
(Factory Setting)