Sicon-8 Technical Manual
CircuitWerkes, Inc.
8
Controls & Connections
Sicon-8 Main Chassis
Remote/Local:
Allows you to switch operational modes. Remote mode allows normal operation of the
unit. Local mode prevents the unit from issuing commands. The Local mode is used when
performing maintenance on the equipment or setting up the Sicon-8 via the local programming port.
Remote/Local LED:
Red flashing = Local mode. Off = remote mode
Local Programming Port:
Powered RJ-11. Plugging a standard telephone into this port allows you to
program or operate the Sicon-8 without being on an actual telephone call. This jack is always active.
When the Sicon-8 is in remote mode (locked), you must enter the password before proceeding. After two
minutes the Sicon-8 will re-lock itself if no DTMF commands are received. This port has unrestricted
access when the Sicon-8 is in local mode, except for relay commands, which are all disabled.
Power LEDS:
Red = OK, Off = Power failed for that power buss.
Fault LED:
Flashing Red = Firmware or hardware problem
Unlocked LED:
On when the Sicon can receive commands after a valid password is entered, as well as
while in Local mode. This LED also flashes when the incoming phone line rings.
Control LED:
Briefly flashes whenever a relay changes state
Output Gain Control:
Sets the level of audio that is at the Audio Output ¼” jack at the rear of the Sicon-
8. The audio at this jack will be the voice responses of the Sicon-8 and audio coming in from any active
telephone calls.
Input Gain Control:
Sets the audio level being sent down the line to the caller from the rear panel audio
input jack.
Null Adjust:
Sets the hybrid null. This setting is important if you will be feeding audio down the line to
the caller while controlling the Sicon-8 via DTMF tones. Setting the null is accomplished by monitoring
the Sicon-8’s audio output connection with an amplified speaker, or even an analog voltmeter. Dial up
the Sicon-8 &, enter the UNLOCK password, then trigger the built-in 1kHz test tone by entering 90 from
any menu. Adjust the Null Pot to minimize the tone level at the output jack. You may listen on an
amplified speaker or use a VU meter for this adjustment. You should not hear any significant change in
level feeding the phone line – only at the audio output jack. The null adjustment may have to be
repeated if you change phone lines attached to the Sicon-8 or if your phone lines are modified, changed,
or repaired by your telephone company. After the null is adjusted, connect your audio in and/or out
wiring. If you will not be feeding any audio to the callers, then you can probably just leave the setting at
the factory default or at the 12 o’clock position.
Содержание Sicon-8
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