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Cable distance

Cable type

CAT 5e or

be er**

BELDEN

9842**

(shielded)

SEC472

SEC4142

C303900/

C303901

Gallagher

HBUS Cable

* The matching of wire sizes to equivalent wire gauges are only approximate.

** Recommended cable types for op mal HBUS RS485 performance.

*** Not applicable for Bluetooth® enabled reader installa ons.

**** Tested with 13.6V at start of cable.

Notes:

•

Shielded cable may reduce the obtainable cable length. Shielded cable should be

grounded at the Controller end only.

•

If other cable types are used, opera ng distances and performance may be reduced

depending on the cable quality.

•

HBUS allows up to 20 readers to be connected to a single cable. Each reader requires at

least 9 Vdc to func on correctly. The cable length and the number of readers connected

will have an impact on the voltage at each reader.

Distance between readers

The distance separa ng any two proximity readers must not be less than 200 mm (8 in) in all direc ons.

When moun ng a proximity reader on an internal wall, check that any reader ﬁ xed to the other side of

the wall is not less than 200 mm (8 in) away.

3E4720 Gallagher T12 Reader | Edi on 12 | May 2023

Cable format*

4 twisted pair each 2 x

0.2 mm

(24 AWG)

2 twisted pair each 2 x

0.2 mm

(24 AWG)

4 x 0.2 mm

Not

twisted pairs (24 AWG)

4 x 0.4 mm

Not

twisted pairs (21 AWG)

2 Twisted pair each 2

x 0.4 mm

(21 AWG,

Data) and 2 x 0.75 mm

Not Twisted Pair (~18

AWG, Power)

200 mm

HBUS

Cardax IV

single reader

connected

using data

only in a single

cable

cable***

500 m (1640 )

200 m (650 )

500 m (1640 )

200 m (650 )

400 m (1310 )

200 m (650 )

400 m (1310 )

200 m (650 )

500 m (1640 )

200 m (650 )

HBUS/Cardax IV

single reader

connected using

power and

data in a single

cable****

100 m (330 )

150 m (500 )

450 m (1490 )

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