Inovonics JUSTIN 808, Инструкция по установке и эксплуатации

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— 10 —
Network Port
The rear-panel RJ-45
NETWORK PORT
connects the JUSTIN 808
to a Local Area Network (LAN) or to the Internet. The internal
Webpage interface affords full remote control, timekeeping,
alarm notifications and logging, and SMTP support.
Basic network connection was covered in the Quick-Start Setup
section. Additional notes appear elsewhere in the manual.
GPIOs
The rear-panel screw-terminal connector carries five software-
assignable general purpose inputs and five assignable outputs.
Ground and a current-limited +5VDC supply are included for
your convenience, and this terminal strip unplugs from the
chassis to make connection easier.
General-purpose inputs (GPIs) are assigned by navigating to
Setup
/
General Purpose Inputs
, using either the front-panel knob
or the Web interface. On this menu,
Input 1
through
Input 5
may
be individually selected, and logic
Polarit
y specified for that par-
ticular input. These inputs have internal pull-up resistors to
the +5V supply. An
Active Low
selection would normally be
looking at an open circuit and activated by applying a ground.
An
Active High
selection means that the input would normally
be grounded and activated when the ground was removed.
The GPI
Type
field allows assignment of the specified input to
engage either the
Ballgame Mode
(see Page 34) or
AES Pass-
Through
, which bypasses the JUSTIN 808 out of the signal path
see Page 37).
General-purpose outputs are similarly assigned by navigating to
Setup
/
General Purpose Outputs
with the front-panel knob or us-
ing the Web interface. Here again,
Output 1
through
Output 5
can
be assigned a
Polarity
,
Active Low
pulling the specified terminal
to ground (NPN transistor saturation) for an alarm condition
and
Active High
normally a ground going open on an alarm.
GPO Type
assigns the selected output to a specific alarm condi-
tion. There are six alarms, and these are discussed beginning
on Page 26. The GPO closures (or opens) are referred-to as “tal-
lies” in the alarm discussions.