Zeta Alarm Systems.
Classic 2000 Mk II Operation Manual
Revision 1.0
Part # MAN-Z3K-01
Page 5
City Tie/Reverse Polarity Module
City Box/Reverse Polarity Module (ZCBM) with a disable switch allows for connection to mon-
itoring facilities
Networked Digital Communicator
Zeta Networked Digital Communicator (ZNDC) is a UL listed, dual-line dialer that allows a
Sigma Mk II or Classic 2000 Mk II FACP to report events to a central monitoring station, over
the public phone system.
ZNDC requires the use of 2 phone lines.
Conventional Zone Expansion
Five Zone Expansion module (ZFZA) provides five Class A initiating loops.
Ten Zone Expansion module (ZTZB) provides ten Class B initiating loops.
Panel Network Interface (ZPNI) — see following section.
Zone Relay Module provides five expansion relays. Note: this device does NOT attach to the
RS-485 network, but instead has it’s own port on the board.
Panel Network Interface
ZPNI-S1K provides a way for the Classic 2000 Mk II panel to communicate with a Sigma Mk II
FACP, using Sigma Mk II inputs as addressable points.
Dual Input-Output Module
The ZDIO module contains two class B inputs and two class B / relay outputs.
The two inputs provide two-wire initiating circuit for normally-open fire alarm and
supervisory devices.
The ZDIO’s outputs may be configured inone of two ways. It may be made to switch external
DC power or audio power (up to 100Vrms) to notificaiton appliances. It may also be configured
to provide one set of Form-C (SPDT) relay contacts per output.
