Gallagher T11 Installatie Opmerking - Pagina 2
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Installation Note | Gallagher T11 Reader
Before you begin
Shipment Contents
Check the shipment contains the following items:
•
1 x Gallagher T11 Reader facia assembly
•
1 x Gallagher T11 Reader base
•
1 x M3 Torx Post Security screw
•
2 x 6-32 UNC screws
•
4 x self tapping, pan head, pozi fixing screws
Power Supply
The Gallagher T11 Reader is designed to operate over a supply voltage range of
9 - 16Vdc measured at the reader terminals. The operating current draw is dependant
on the supply voltage at the reader. For the Standard variant at 12Vdc the current
draw is 54mA (standby). During card read, beeper and LED activity, the current will
momentarily reach 100mA (peak). For the Multi Tech variant at 12Vdc the current
draw is 88mA (standby) and will momentarily reach 140mA (peak).
The power source should be linear or a good quality switched-mode power supply. The
performance of the reader may be affected by a low quality, noisy power supply.
Cabling
The Gallagher T11 Reader requires a minimum cable size of 4 core 24 AWG
(0.2mm
) stranded security cable. This cable allows the transmission of data (2 wires)
2
and power (2 wires). When using a single cable to carry both power supply and
data, both the power supply voltage drop and data requirements must be considered.
Although the reader is specified to operate at 9Vdc, for good engineering design it
is recommended that the voltage at the reader should be approximately 12Vdc.
Examples of approved cables for connecting a single Gallagher T11 Reader to a
Controller and power supply, showing maximum cable lengths for each type of cable
and the associated circuits are:
Manufacturer
reference
CAT5E
SEC472
SEC4142
BELDEN 8723
BELDEN 9842
2 | Part Number: 3E2513 R1
Cable format*
4 twisted pair
Each 2 x 0.2mm
(24 AWG)
2
4 x 0.2mm
2
Not twisted pairs (24 AWG)
4 x 0.4mm
2
Not twisted pairs (21 AWG)
2 twisted pair
Each 2 x 0.4mm
(22 AWG)
2
2 twisted pair
Each 2 x 0.2mm
(24 AWG)
2
Combined
power and data
Data only in a
in a single cable
single cable
100m (330ft)
300m (1000ft)
100m (330ft)
250m (800ft)
150m (500ft)
150m (500ft)
100m (330ft)
150m (500ft)
100m (330ft)
200m (650ft)