3Ennnn Gallagher T30 Reader Installation Note| DRAFT2 | July 2020
Copyright © Gallagher Group Limited
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1
Introduction
The Gallagher T30 Keypad Reader is available in a variety of variants. The variant you have purchased
determines the available functionality and supported technologies for the reader.
The Multi Tech variants C300490 and C300491 support Gallagher mobile credentials, using Bluetooth®
low energy technology.
The reader can be mounted on a rectangular 50 mm x 75 mm (2 in x 3 in) flush box, a BS 4662 British
Standard square flush box, or any solid flat surface
The terminal sends information to the Gallagher Controller and acts upon information sent from the
Gallagher Controller. The terminal itself does not make any access decisions.
2
Before you begin
2.1
Shipment contents
Check the shipment contains the following items:
•
1 x Gallagher T30 Keypad Reader facia assembly
•
1 x Gallagher T30 Keypad Reader bezel
•
2 x 6-32 UNC (32 mm) Phillips drive fixing screws
•
2 x M3.5 (40 mm) Phillips drive fixing screws
•
5 x 25 mm No.6 self tapping, pan head, Phillips drive fixing screws
•
1 x M3 Torx Post (T10) Security screw
2.2
Power supply
The Gallagher T30 Keypad Reader is designed to operate over a supply voltage range of 9 - 16
Vdc measured at the readers. The operating current draw is dependent on the supply voltage at
the reader. 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.
2.3
Cabling
The Gallagher T30 Keypad Reader requires a minimum cable size of 4 core 24 AWG (0.2 mm
2
)
stranded security cable. This cable allows the transmission of data (2 wires) 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
9 Vdc, for good engineering design it is recommended that the voltage at the reader should be
approximately 12 Vdc.
HBUS cabling topology
The HBUS communications protocol is based on the RS485 standard and allows the reader to
communicate over a distance of up to 500 m (1640 ft).
The cabling between HBUS devices should be done in a "daisy chain" topology,
(i.e. A "T" or "Star" topology should not be used between devices). Should "Star" or "Home-Run"
