Siemens Intelligent Initiating Devices

ARCHITECT AND ENGINEER SPECIFICATIONS

• Durable design
• Shock and vibration resistant
• Pull-down lever remains down until reset
• Normally closed (N.C) auxiliary contacts
• Dynamic supervision
• For Model MSI-30BC: Reset with Allen Key, Two-wire / two-stage, dual-address operation, Surface or semi-flush installation, Model DPU programs and verifies the device addresses tests for functionality, Electronic address programming is easier and more dependable

• Fitted with screw terminals
• Compatibility with FireFinder® XLS and MXL control panels
• ULC Listed

Product Overview

The Two-Stage, Dual-Address Intelligent Manual Station (Model MSI-30BC) from Siemens Canada Limited – Fire Safety offers advanced address programming and supervision. Its microcomputer-chip technology provides bi-directional communication with FireFinder XLS and MXL control panels. The pull switch and second-stage key switch have unique addresses, and each is fully identifiable. Only one pair of wires is required for Model MSI-30BC.

The Single-Address Intelligent Manual Station (Model MSI-51BD) is also an addressable device, providing single-address communication without a key switch. Both stations feature N.C auxiliary contacts in the Normal condition.

Specifications

Models MSI-30BC and MSI-51BD are constructed of durable-molded polycarbonate material, finished in matte red with raised white lettering. The MSI-30BC housing accommodates a 'pull-down' lever that locks in position when activated, indicating the manual station has been engaged. The pull-down lever remains down and locked until reset by opening the hinged housing cover with an Allen Key, then closing and locking the cover.

Model MSI-30BC is designed for two-stage applications: the first-stage alarm is activated by the pull-down lever, and the second-stage alarm is activated by the key switch turned to 'On.' The microcomputer-chip technology stores identification and operating-status information. Model MSI-51BD is for single-stage application, where the alarm is activated solely by the pull-down lever.

Siemens' technology allows all Model MSI-30BC Intelligent Manual Stations to be programmed via the Model DPU Programmer / Tester. This compact, portable, and menu-driven accessory streamlines programming and testing. The Model DPU eliminates mechanical addressing mechanisms by electronically setting the pull station's microcomputer chip's non-volatile memory. Vibration, corrosion, and other conditions that can affect mechanical mechanisms are mitigated as the MSI-30BC is fitted with screw terminals for connection to an addressable circuit. The MSI-30BC can be surface or semi-flush mounted and operates with FireFinder XLS and MXL control panels.

Wiring Diagrams

Mounting Diagrams

Details for Ordering

Notes

1. Recommended wire sizes: 18 AWG minimum, 14 AWG maximum.
2. Wire larger than 14 AWG can damage the connector.
3. When using shielded cable without metal raceway or with nonmetallic raceway, the shields should be terminated at the device ground terminal. If the device box is already grounded by another means - such as being mounted to a grounded structure - then the wire shields should be continuous, and must be grounded solely at the point of origin.
4. When using shielded cable with metal raceway, the wiring shields shall be continuous and grounded solely at the point of origin. The device ground terminal shall be connected to the grounded device box.
5. When using metal raceway without shielded cable, connect the device ground terminal to the grounded device box.
6. Metal raceway should be continuously grounded throughout the system.