Model PAD-5
1
Description
5
Siemens Industry, Inc.
A6V101030358_en--_c
Smart Infrastructure
1 PAD-5
Figure 1: PAD-5-MB
1.1 Description
The Model PAD-5-MB Main board is an intelligent notification and auxiliary power
expander that provides up to 9 amps @ 24V DC (with FP2012-U1) or 6A @ 24V DC
(with FP2011-U1). The PAD-5 powers notification appliances and auxiliary devices,
and can charge up to 100Ah batteries. It connects to the Fire Panel Device P2 loop
(XDLC in the Desigo Fire Safety Modular and Cerberus PRO Modular systems) and
uses one loop address (not including expansion boards, which have a separate
address). The maximum number of PAD-5 Main Boards and expansion boards
combined is 32 per XDLC. The XDLC is the P2 device loop card for the Desigo Fire
Safety Modular and Cerberus PRO Modular systems.
The purpose of the PAD-5-MB main board is to provide remote power for notification
devices via its NAC 1-4 circuits, and accessory equipment, such as door holders, via
its Auxiliary Output circuit. The PAD-5-MB also allows for an expansion module that
plug into the PAD-5-MB. The expansion headers allow for the connection of a PAD-5-
CDC (Conventional Detector Card) or PAD-5-CLSA (NAC Expansion Card with
Releasing, designations NAC 5-8). Only one expansion module can be connected to
the PAD-5-MB at one time, either conventional zones or NAC/Releasing zones, but not
both.
All NAC outputs and the one dedicated auxiliary output have a maximum combined
current of 9A (with FP2012-U1 300-Watt Power Supply) and 6A (with FP2011-U1 170-
Watt Power Supply). They are all power-limited. If the optional NAC expansion card is
plugged into the PAD-5-MB, the combined current limit for all outputs (NACs 1-8 plus
the auxiliary output) must still meet the 9A or 6A limit. The additional NACs on the
expansion card do not mean additional power; they only allow for additional zones, or
the ability to use NAC5 and NAC 6 for releasing purposes (either 2 Class B or 1 Class
A.
The main board has the battery charger and battery switchover circuit for AC fail or
brownout. The battery size is selectable via the panel configuration tool (e.g., Zeus for
Desigo Fire Safety Modular and Cerberus PRO Modular systems). Two PAD-5-MBs
may share 1 battery set, but one of the PAD-5-MBs needs to have its battery charger
disabled through the configuration tool. Please refer to the Zeus programming manual
(315-034686) for specifics about configuring the PAD-5-MB and its expansion
modules.
NOTE:
Pathway Survivability: Each circuit must be evaluated and tested to ensure compliance
to the application and area of protection to meet the criteria of NFPA 72.
