Campbell Scientific COM310 Voice Communications Modem User Manual

Page 11

COM310 Voice Communications Modem

Pressing the # key you should hear:

C R ONE THOUSAND STATION
PRESS ONE TO HEAR A SENSOR VALUE
PRESS TWO TO HEAR OR TOGGLE PORT
PRESS THREE TO HEAR OR TOGGLE FLAG
PRESS STAR TO DISCONNECT

3) Navigate around in the menus to learn the program’s capabilities:

a) Press 2 to access the Ports Menu

b) Press 1 to read the logic state of Control Port 1

c) Press # to toggle the logic state of Control Port 1 (C1’s LED should

turn on).

d) Press # again (C1’s LED should turn off)

e) Press * to return to “C R ONE THOUSAND STATION” menu

f) Press * to hang up

4) Try hanging up the phone without pressing * (disorderly exit) and see if

the modem automatically hangs up after a few seconds.

5) As you press the keys to navigate around in the menus you will find that

occasionally you get an unexpected response. Phone connections are
susceptible to noise pickup and signal attenuation. Depending on your
particular phone equipment and the phone lines and equipment between
you and the voice station, you may at times experience some of the
following:

a) You press * and the voice station hangs up but doesn’t say,

“Goodbye.”

b) A voice callback rings your phone but you pick up to silence

Certain phones are more of a problem due to low signal levels or
switch bounce.

6) Helpful hints for pressing phone keys to control a voice station

a) Press a key firmly (but not too long)

b) Allow a second between keys

c) Press the same key again if a wrong response is gotten

d) If no response, try pressing key again or press # key to recover

e) If unresponsive, try rapidly pressing a series of five * keys to

disconnect station.

f) Worst case, allow 6 minutes for the voice station to reset itself

Following is the text of the BASIC_VOICE_2.CR1 example voice
callback/callin program employing VoiceSetup( ). The program should be
available for download on our website under Support/Downloads/Program
Examples. Following the program is a description of its main sections.