APPENDIX E. COMMUNICATIONS
HF-2500A HIGH FREQUENCY WELD CONTROL
E-2 990-371
RS-232 Serial Connector Information
The serial port pin assignment is as follows:
Host settings
Baud Rate 1.2k, 2.4k, 4.8k, 9.6k, 14.4k, 19.2k, 28.8k, 38.4k (set on the unit)
Data bits 8
Stop bit 1
Parity None
NOTES:
• The host must be set to the same baud rate as the unit. The computer hardware and operating
system needed to support communication depends upon the RS-485 adapter (or converter box)
used.
• For a microprocessor-based conversion (such as the Edgeport USB converter from Inside Outside
Networks), the host computer should be at least a Pentium II-233 running Windows 98, Windows
ME, Windows 2000, Windows XP or Windows NT 4.0. For a hardware-based converter without
an internal microprocessor (such as the Telebyte model 285), the host computer should be at least
a Pentium III-550 running Windows 98, Windows ME, Windows 2000, Windows XP or
Windows NT 4.0.
#6 -- DTR (Data Terminal Ready)
#7 -- CTS (Clear to Send)
#8 -- RTS (Request to Send)
#9 -- RI (Ring Indicator)
#1 – Not Used
#2 -- TXD (Transmit Data)
#4 – DSR (Data Set Ready)
#5 -- SGND (Signal Ground)
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