Zeta Alarm Systems.
Classic 2000 Mk II Operation Manual
Revision 1.0
Part # MAN-Z3K-01
Page 71
6. Networking / Serial Devices
The Zeta Alarm Systems Classic 2000 Mk II has the capability to communicate with up to 127
devices over an RS-485 network. All network devices are 4-wire devices, two wires are required to
provide 24VDC power and 2 for the network communications. Connect the network communica-
tion and power wires to the ten-pin connector on the CP3 and any network device, being careful to
observe the “+” and “–” connections.
NOTE: All expansion boards should be attached to the CP3 prior to mounting the CP3 to the
Power Chassis and assembling in the cabinet. Never Attach Any Accessory Boards To The
CP3 Without First Removing All Power (AC and Batteries). DOING SO WILL VOID
THE WARRANTY.
6.1
Serial Devices
6.1.1 Zeta Remote Display Annunciator (ZRDA)
The Classic 2000 Mk II allows for up to 16 ZRDAs for remote annunciation. The ZRDA will mimic
the Local Display at the main panel and allows Silence and Reset functions.
6.1.2 Conventional Initiating Zone Expansion
The Classic 2000 Mk II can expand its number of Conventional Initiating Zones in three ways:
ZFZA/ZTZB, ZDIO, or Sigma Mk II network through ZPNI boards.
6.1.2.1 ZFZA/ZTZB
The ZFZA / ZTZB serial expansion cards are compatible with many two-wire fire detectors and any
normally -open contact device. The circuits may also be used as a supervisory circuit to monitor
the normally-open contacts of supervisory devices, water flow, or pressure switches in sprinkler
systems. The ZFZA / ZTZB operation does not support alarm verification, non-latching alarms, or
normally closed alarms. The ZFZA / ZTZB support ZZRM relay functions (each ZZRM auxiliary
relay is linked automatically to an individual zone initiating circuit—see section 2.2.6). The Zone
Expansion cards and ZZRM relays can be located in an ZSDE enclosure.
6.1.2.1.1 Zeta Five Zone Class A Expansion Module (ZFZA)
The panel accommodates 12 ZFZA modules (60 Class A / Style 6 zones). Five (5) Class A
zone initiating circuits are provided with the five-zone expansion module. These initiating
circuits are power limited and are resettable under microprocessor control. The ZFZA is
able to be located remotely from the main panel via the four-wire network connection.
Each ZFZA will support up to 2 or 4 ZZRMs. See section 6.4.2 for addressing information.
The ZFZA / ZTZB connects to the panel through the RS-485 network.
6.1.2.1.2 Zeta Ten Zone Class B Expansion Module (ZTZB)
The panel accommodates 12 ZTZB modules (120 Class B / Style 4 Zones). Ten (10) Class
B zone initiating circuits are provided with the ten-zone expansion module. These initiating
circuits are power limited and are resettable under microprocessor control. The ZTZB is
able to be located remotely from the main panel via the four-wire network connection. The
ZTZB will support up to 4 ZZRMs. See section 6.4.2 for addressing information.
