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3] HARDWARE CONNECTIONS
The following sections provide an overview of the TCP/IP module and details on how to
connect it between a serial device and a LAN.
A special connection method is required when confi guring the module through its serial port.
Refer to “Confi guring Via Serial Port” on page 5.
Connecting Between LAN and RS-232 Device
This connection method enables you to connect the TCP/IP module to a serial device’s DB-9
connector (RS-232 serial port). For example, you can connect to the serial port of a Centaur
CT-V900-A controller. The standard connection requires the use of a DB-9 to modular phone
jack cable. Refer to Figure 5 below and to the instructions that follow:
Figure 5: Standard Connections
1) Apply 12Vdc to the terminals labeled 12V and GND on the
TCP/IP module.
2) Connect the DB-9 to modular phone jack cable between the modular phone jack on the
TCP/IP module and the serial device’s DB-9 connector (refer to next Table).
3) Connect a twisted pair Ethernet wire (10BaseT) between the TCP/IP module’s RJ-45
RX
TX
SERIAL
12V GND
PGM
ZONE
SERIAL
NULL
DIRECT
JP2
JP1
TCP/IP Module
(CA-ETHR-A)
Modular
phone jack
5-pin
serial cable
10BaseT
Ethernet
To 9-pin RS-232
connector on
serial device
(i.e. controller)
+-
12Vdc
LAN
CA-ETHR-A
TCP/IP Module
INSTALLATION MANUAL
Содержание CA-ETHR-A
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