User guide

Manual Issue 046 Ovation Systems Ltd. Page 24
Time-Lapse DVD Recorder
User Guide
5.1 External I/O & Control
AfterBurner has a 14 way external input / output and control interface which have
functions based upon the now obsolete Panasonic 6730 S-VHS time-lapse VCR.
NB: With the current issue of AfterBurner firmware, the external I/O and control
interface has a limited capability. This will be enhanced via future firmware upgrades.
Pin In
/out
Name Description
1 in Alarm-start If alarms are enabled, on contact to ground,
the picture record rate changes to the
preset alarm rate (see Section 4.4, page
16). NB: unit has to be in record mode.
2 In Alarm-stop This pin has two functions:
1) If not in alarm mode, Record stop.
2) In alarm mode with “Start/ Stop” selected,
contact to ground cancels the alarm (see
Section 4.4, page 16).
3 In Record
(was called
Snapshot)
Record when connected to ground. When
opened, the unit either stops or enters
“Record pause” as set in Section 4.1,
page12.
4 In Time-in External synchronisation of the AfterBurner
clock. Active low. See section 4.7, page 20.
5 In Chain-in
(record start)
On contact to ground, the unit starts
recording. Can be used to with the “Chain
out”, pin 12, of another AfterBurner.
NB: only operates if AfterBurner is not in
stand-by.
6 In Wake-up Switches unit on (from stand-by) when
connected to ground. Can be used in
conjunction with other control pins (see
examples below).
7 - Ground Ground
8 Out Recording-ok Recording ok. Active low, open collector
output.
9 Out Disk-full Disk full alarm. Active low when the internal
hard disk is full. (Only active with “stop when
full” disk option is set – see Section 4.1),
open collector output.
10 Out Alarm-out Low when alarm active, open collector
output.
Afterburner firmware .046 www.ovation.co.uk