Speco Technologies KBD-927 - Manual (Page 13)

13
DOME
Multi-
plexer
Sub-
controll
er
Termination
1 2 3 4 5 6
Controller
7 8
ON ON ON ON SLAVE ON
OFF OFF OFF OFF
reserved
MASTER OFF
Factory
Use
Table 1 - S1 Switch Setting
2.3 Multiplexer Control
Duplex setup:
NOTE: Multiplexers require a new ROM version to be controlled by the keyboard controller. The new
multiplexer ROM accepts control instructions from the keyboard controller. If your multiplexer’s serial
number is M104xxxx or higher, then it is ready to accept control instructions. Alternately, you can
check the status of your multiplexer by pressing the Menu key of the multiplexer and then selecting
item 9. If you see the “** Protocol” option line in the Communication Setup menu, your multiplexer has
the new ROM, and you do not need to replace the ROM. If your multiplexer has the old ROM version,
contact your distributor on how to get new a ROM.
CAUTION: Before opening the multiplexer, make certain you are working on an antistatic work
surface and that you are wearing a grounding wrist strap. Also, be very careful to
orient the ROM chip correctly and not bend any of the pins.
NOTE: Replace the multiplexer firmware with the new multiplexer ROM (U45) as follows;
Remove the top cover of the multiplexer, and locate the ROM (U45). Before removing the ROM, note
the orientation of the ROM. After removing the old ROM from the socket, insert the new ROM.
Be careful to orient the new ROM the same as the old ROM.
(Refer to the Multiplexer instruction manual.)
Set the multiplexer functions as follows:
(Press the Menu key of the multiplexer to enter the Unit Options menu.)
9. Unit Options
Unit Number: 001 (first Mux) or 002 (second Mux)
Communication Type: RS 485
Baud rate: 9600 bps
PORT: ON
** Protocol:** B (If you see this line, the multiplexer has the new ROM)
** The old ROM version does not show Protocol selection option.
Multiplexer alarm inputs will function normally, but the Dome controller has no way of knowing about
alarms wired to the Multiplexer. If a Dome preset is required for such an alarm, you must connect the
same alarm input to both the multiplexer and Dome.
Triplex setup: Unit setup
Network Type: RS 485
Baud Rate:
9600 bps