Keyboard Cascading; Master/Slave Connection; Figure 7. Sample System Of Cascaded Keyboards - Honeywell HJZTP User Manual

2.5 KEYBOARD CASCADING

It is possible to cascade up to three slave keyboards off a master keyboard that is
connected to the multiplexer / DVR and dome RS485 line. All keyboards in the cascade
can communicate with any DVR, multiplexer, or dome connected to the master.

2.5.1 Master/Slave Connection

A system of cascaded keyboards is connected as shown below.

Figure 7. SAMPLE SYSTEM OF CASCADED KEYBOARDS.

In the above system two slave keyboards are connected to a master keyboard. The
system also has two multiplexers, and two DVRs connected. And VCL (Orbiter / Rapid )
dome data is being input into the system from a control device.
Rev. 1.01 8 900.0570
8-Sept-05