ASCOM T942C Installation Manual page 9

Installation Guide
T942C and T942C/2 Central Unit
Switches
SW01
SW02
LEDs
LED01A
LED01B
LED02
LED03
LED04
LED05
LED06
LED07
LED08
LED09
IC-Circuits
IC01
IC08
IC13, IC14
IC22
IC54
16 April 2015 / Ver. G
Address selector switch for the C-bus. If the setting of SW1 is changed the
Central Unit must be restarted for the change to become effective.
If the settings of sections 1, 3 or 4 on switch SW2 are changed, the Central
Unit must be restarted for the change to become effective. Section 1 is set to
ON if a PC (connected to connector J09) equipped with PDM or other special
program, is to be used according to the PC line protocol.
If section 1 is set to OFF, a PC equipped with a terminal emulating program
can be used as an aid at the installation test procedure and for service.
Section 2 is used for test pagings (ON = Test pagings on, OFF = Test pagings
off). Section 2 is normally set to OFF.
Section 3 determines if the parameter list is to be read from the non-volatile
memory or from the FLASH PROM (ON = Read from the non-volatile memory,
OFF = Read from the FLASH PROM). Section 3 is normally set to OFF when the
configuration of parameters is done in PCPAR.
Section 4 determines if the non-volatile memory is to be reset or not after
restarting the Central Unit (ON = Reset, OFF = Reset not). Section 4 is normally
set to OFF.
Sections 5 is used for "off licensed mode".
Sections 6-8 are not used and are set to OFF.
Green function indicator.
Red function indicator.
BCP communication in progress.
Paging systems: Synch. data transmission in progress on D-bus.
Communication in progress between MP and BCP.
Not used.
Aux. relay output (on connector J10) is active.
Not used.
Indicates transmission to external computer (J09).
Indicates reception from external computer (J09).
Microprocessor, type 80C188EB.
Module key.
FLASH PROMs, contain the software for IC14: the main processor.
RAM memory with battery backup.
FLASH PROM, contains the software for the communication processor.
TD 91684GB
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