Appendix K. RF400/RF410 Pass/Fail Tests

NOTE

NOTE

CAUTION

(d)Emulation: TTY

(e)ASCII

(f)COM1 (or any available COM port)

With some versions of HyperTerminalTM after changing a setting it is necessary to do a “Call Disconnect” (or “Disconnect”) followed by a “Call Connect” (or “Call”) for the new setting to register.

(2)Connect an SC12 to the selected PC COM port either directly or via known-good RS-232 cable.

(3)Temporarily short together pins 2 and 3 (RX and TX) of the SC12 cable’s male connector using a small (22 - 24 gage) copper wire, PC card jumper, or flat-bladed screwdriver. Take care to connect only pins 2 and 3.

End view of male SC12 Connector

(4) Press any alpha-numeric keys on PC keyboard.

Make sure that Properties/Settings/ASCII Setup “Echo characters locally” or the equivalent ProcommTM setting is NOT enabled.

(5)If the SC12 cable is good you will see characters “echo” to the screen as you press the keys.

(6)Remove the short circuit from the SC12 connector. Key presses should now cease to echo back.

(7)Test the SC12 cable’s female drop by gently inserting a u-shaped portion of paper-clip into pins 2 and 3 and repeating steps 4 to 6 inclusive.

End view of female SC12 Connector

Be sure to remove shorts between pins 2 and 3 when done.

K-2