impro IMPROX TT, Installation Manual

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XTT300-0-0-GB-16 January 2011 Page 3
NOTE: End of Line (EOL) Sensing enables the Terminal to raise an alarm when
somebody tampers with the circuit (that is, cutting or shorting the wires)
between Input 1 (of DOS [1] or DOS [2]) and
‘ ’ GROUND (GND).
In other words the Terminal distinguishes between tampering on the circuit,
and the door being in an actual ‘Normally Open’ state.
By placing Resistors into the circuit between the Input 1 (of DOS [1] or DOS
[2]) and ‘
’ GROUND (GND), the Terminal’s Digital Input monitors a
constant resistance through the circuit. When the circuit is tampered with,
the Resistors are bypassed; the Terminal detects the resistance change
raising an alarm.
LED “Diagnostic Indicators”
Status LED
Power On........................ Continuous Red.
Upgrade Mode ................ Flashing Red (Steady).
RS485 Communications
Failure ............................
Flashing Red (Intermittent).
Incoming RS485 Data ............ Flashing Green LED.
Outgoing RS485 Data ............ Flashing Red LED.
Digital Inputs (1-4) .................. Continuous Green on detected contact
closure.
Relays (1 and 2) ..................... Continuous Red on activation of the Relay.
INSTALLATION INFORMATION
Accessories
Find the following when unpacking the ImproX TT Terminal:
CAUTION: DO NOT use the Metal-oxide Varistors (25 Vrms, 500 A, 77 V max
clamping) with mains power applications.
Open Frame Construction (XTT900)

An ImproX (TT) Twin Antenna Terminal with an open frame construction. The
construction consists of a Trivalent Passivated Mild Steel Mounting Plate and a
Biaxially-oriented Polypropylene Cover Plate.

Two Metal-Oxide Varistors, 25 Vrms, 500 A, 77 V max clamping.

An extra Fixed Address Label.
Aluminium Extruded Cabinet (XTT910)

An ImproX (TT) Twin Antenna Terminal housed in a Black, Aluminium extruded
Cabinet. The Cabinet consists of a Top Cover, a Base and two End Plates. Each
End Plate is attached with four Thread Cutter Screws (2.2 x 5 mm).

Two Metal-Oxide Varistors, 25 Vrms, 500 A, 77 V max clamping.

An extra Fixed Address Label.