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Finish Installation
Building Automation System Wiring Slave Panel Wiring
Johnson Controls METASYS® System: Digital display modules of two alarm
The MEGA2 alarm panel is compatible panels may be wired together in such a
with Johnson Controls METASYS® way that pressure readings of first panel
building automation system (Using can be duplicated at second panel. Each
METASYS® Integrator). Each MEGA2 digital display module has RS-422 digital
alarm panel is connected to a common outputs and inputs. By connecting digital
two-wire RS-485 serial computer interface output (master output) of first panel to
bus. Two wires are connected to pins 1 digital inputs (slave input) of the second
and 2 of annunciator module and then panel, second panel will duplicate
connected to common data bus. Refer to pressure readings. Refer to Schematic 4
Schematic 9 (Pg. 21) for details. Each (Pg. 17) for details.
digital display module and multi-signal
module within alarm panel is field
programmed with a unique network
address. Using this address, Johnson
Controls system can monitor alarm panel
status including digital pressure readings
and programmed alarm set points.
33
Part No. 6-847684-00 Rev. E00
