Specifications
Honeywell Security Combined Installation & Operation Guide
© Honeywell 2004 HMKC-001-01 Page 2 of 23
Introduction
The HKJX8A+ is a unit designed to control both Multiplexers and DVRs and send telemetry to
up to 128 Honeywell Microspheres via RS485 TP telemetry. Compatible telemetry receivers
may also be used, such as BBV RX552.
The Multiplexers can be ‘daisy chained’ to open up the options for more camera control. The
HKJX8A+ has been designed to work with up to 32, 4 way multiplexers and / or DVRs. Or
alternatively, 14, 9 way multiplexers and / or DVRs. Or 8, 16 way multiplexers and / or DVRs,
or any combination of the above as specified in the keyboards ‘camera assignment’ menu.
Installation
Figure i Rear view of the DVR and multiplexer control handset
All connections to and from the keyboard are made to the RJ type connectors located on the rear
panel of the unit.
1.0 Keyboard Cascading
It is possible to cascade up to three slave keyboards off a master keyboard that is connected to
the multiplexer / DVR and microsphere RS485 line. All keyboards in the cascade can
communicate with any DVR, multiplexer or camera connected to the master.