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UC-7420/7410 User’s Manual Introduction
1-11
Connecting to a Serial Device
Use properly wired serial cables to connect UC-7420/7410 to serial devices. UC-7420/7410’s
serial ports (P1 to P8) use 8-pin RJ45 connectors. The ports can be configured by software for
RS-232, RS-422, or 2-wire RS-485. The precise pin assignments are shown in the following table:
18
Pin RS-232 RS-422 RS-485
1 DSR --- ---
2 RTS TXD+ ---
3 GND GND GND
4 TXD TXD- ---
5 RXD RXD+ Data+
6 DCD RXD- Data-
7 CTS --- ---
8 DTR --- ---
Connecting to the Console Port
UC-7420/7410’s console port is an 8-pin RJ45 RS-232 port. The port can be used to connect to the
console utility from a remote console via a V90 or GPRS modem with PPP protocol. The pin
definition is the same as for the serial ports (P1 to P8). For normal data acquisition applications,
you should connect to UC-7420/7410’s serial ports (P1 to P8) via a V90 or GPRS modem. If you
would like to use the console port for normal data acquisition applications, you can set the Console
port to startup via PPP protocol. For details, refer to “Dial-up Service—PPP” section in Chapter 4.
PCMCIA
The PCMCIA slot supports the CardBus (Card-32) Card standard and 16-bit (PCMCIA 2.1/JEIDA
4.2) Card standard. It supports +3.3V, +5V, and +12V at a working voltage of 120 mA. Wireless
LAN card expansion is optional. The Wireless LAN card provided by Moxa lets you connect
UC-7420/7410 to a Wireless LAN, with both 802.1b and 802.11g interfaces supported.
If you need device drivers for other kinds of PCMCIA cards, contact Moxa for information on
how to initiate a cooperative development project.
CompactFlash
UC-7420 provides one CompactFlash slot that supports CompactFlash type I/II card expansion.
Currently, Moxa provides a CompactFlash disk for plug & play mass storage expansion. You may
also use flash disks available from most computer supply outlets. The CompactFlash will be
mounted at
/mnt/hda
If you need device drivers for other kinds of mass storage cards, contact Moxa for information on
how to initiate a cooperative development project.