08-17-2011
The Terminal is DTE, the computer end is trickier. If you are connecting to COM1 or COM2 then those ports are also DTE, so you will need a null modem cable.
If you are connecting to a multiport serial card, then you will have to look at the documentation, as some ports can be set either DTE or DCE via software.
All you really need to do is buy an extra RJ45 to RS232 (either 9 or 25 pin) adapter, and wire one for DCE and the other for DTE.
This User Gave Thanks to jgt For This Post:
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LEARN ABOUT FREEBSD
uplcom
UPLCOM(4) BSD Kernel Interfaces Manual UPLCOM(4)
NAME
uplcom -- USB support for Prolific PL-2303/2303X/2303HX serial adapters driver
SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file:
device usb
device ucom
device uplcom
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
uplcom_load="YES"
DESCRIPTION
The uplcom driver provides support for various serial adapters based on the Prolific PL-2303, PL-2303X and PL-2303HX USB-to-RS232 Bridge
chips.
The device is accessed through the ucom(4) driver which makes it behave like a tty(4).
HARDWARE
The uplcom driver supports the following devices and adapters:
o ADLINK ND-6530 USB-Serial Adapter
o Alcatel One Touch 535/735 Phone
o Alcor AU9720 USB-RS232 Serial Adapter
o AlDiga AL-11U Modem
o Alltronix ACM003U00 Modem
o Anchor Serial adapter
o ATEN UC-232A
o BAFO BF-800 and BF-810
o Belkin F5U257
o BenQ S81 Phone
o Corega CG-USBRS232R Serial Adapter
o Cressi Edy (Seiko) Diving Computer
o ELECOM UC-SGT Serial Adapter
o HAL Corporation Crossam2+USB IR commander
o Hama USB RS-232 Serial Adapter
o Hamlet exagerate XURS232
o HP LD220 Point-Of-Sale (POS) Display
o IOGEAR UC-232A
o I/O DATA USB-RSAQ, USB-RSAQ2, USB-RSAQ3 and USB-RSAQ5
o iTegno WM1080A GSM/GFPRS Modem
o iTegno WM2080A CDMA Modem
o Leadtek 9531 GPS
o Micromax 610U Modem
o Microsoft Palm 700WX
o Mobile Action MA-620 Infrared Adapter
o Motorola Cables
o Nokia CA-42 Cable
o OTI DKU-5 cable
o Panasonic TY-TP50P6-S flat screen
o PLX CA-42 Phone Cable
o PLANEX USB-RS232 URS-03
o Prolific Generic USB-Serial Adapters
o Prolific Pharos USB-Serial Adapter
o RATOC REX-USB60
o Radio Shack USB Serial Cable
o Sagem USB-Serial Adapter
o Samsung I330 Phone Cradle
o Sandberg USB to Serial Link (model number 133-08)
o Sanwa KB-USB2 Multimeter cable
o Siemens/BenQ EF81, SX1, X65 and X75 Mobile Phones
o Sitecom USB-Serial Adapter
o SMART Technologies USB-Serial Adapter
o Sony QN3 Phone Cable
o Sony Ericsson Datapilot
o Sony Ericsson DCU-10 and DCU-11 (Susteen) USB Cables
o SOURCENEXT KeikaiDenwa 8 (with and without charger)
o Speed Dragon USB-Serial Cable
o Syntech CPT-8001C Barcode Scanner
o TDK UHA6400 and UPA9664 USB-PHS Adapters
o TRENDnet USB to Serial Converter (TU-S9)
o Tripp-Lite U209-000-R USB-Serial Adapter
o UIC HCR331 Magnetic Stripe Card Reader
o UIC MSR206 Magnetic Stripe Card Reader
o Willcom W-SIM DD PHS terminal.(WS002IN)
o YC-Cable USB-Serial Adapter
o Zeagle N2iTion3 Diving Computer
SEE ALSO
tty(4), ucom(4), usb(4)
HISTORY
The uplcom driver appeared in NetBSD 1.6. This manual page was adopted from NetBSD by Tom Rhodes <trhodes@FreeBSD.org> in April 2002.
BSD
July 25, 2012 BSD