Siemens I-SM70-S30-C Ceiling Speaker Strobe P/N:I-SM70-S30S-C

The Siemens I-SM70-S30-C Ceiling Speaker Strobe 30/75 Candela is a legacy audible/visible fire alarm notification appliance from the Siemens I-SM Series. It combines a 70 VRMS emergency voice speaker with a 30/75-candela strobe in a white ceiling-mount configuration.

The I-SM70-S30-C is designed for emergency voice evacuation and fire alarm notification systems. The S30 designation identifies the 30/75 candela strobe configuration, while the -C suffix identifies the white ceiling-mount version.

Product Functions

• Provides emergency voice notification
• Provides visible fire alarm notification
• Combines speaker and strobe functions
• Designed for ceiling mounting
• White housing
• 70 VRMS speaker operation
• Provides 30/75 candela visual output
• Supports emergency evacuation messages
• Supports prerecorded messages and tones
• Supports live emergency paging
• Separate speaker and strobe circuit operation
• Designed for compatible voice evacuation systems
• Legacy Siemens I-SM Series appliance

Emergency Voice Speaker

The I-SM70-S30-C incorporates a speaker designed for emergency voice communications and fire alarm signaling.

Typical functions include evacuation instructions, emergency announcements, prerecorded messages, alert tones, and live emergency paging.

The speaker is specifically designed for:

70 VRMS

distributed emergency voice circuits.

30/75 Candela Strobe

The visual portion provides:

30/75 cd

strobe output.

The I-SM Series included several visual-output configurations, including 15/75, 30/75, 60/75, 75, and 110 candela models. The I-SM70-S30-C is specifically the 30/75 cd ceiling version.

Ceiling-Mount Configuration

The specific configuration is:

Model: I-SM70-S30-C

Series: I-SM

Device Type: Speaker Strobe

Speaker Voltage: 70 VRMS

Strobe Output: 30/75 cd

Mounting: Ceiling

Color: White

Notification: Audible / Visible

The corresponding wall configurations were available in red and white versions.

Free-Run Strobe Operation

The I-SM70-S30-C is identified as a:

Free-Run Strobe

This distinguishes it from the:

I-SM70-S30S-C

which is the synchronized 30/75 cd ceiling speaker-strobe configuration.

Separate Speaker & Strobe Functions

The speaker and strobe provide two distinct notification functions.

Speaker: Emergency voice and audible signaling

Strobe: Visible emergency notification

This allows the appliance to provide coordinated audible and visual signaling as part of a compatible fire alarm voice evacuation system.

Product Status

The I-SM Series is a legacy/discontinued Siemens notification appliance family. Available historical product information indicates that the I-SM Series was introduced in the late 1990s and subsequently replaced by Siemens Clear-Speak speaker and speaker-strobe products.

For replacement applications, speaker voltage, strobe output, mounting orientation, synchronization requirements, and compatibility with the existing emergency voice system should be verified.

I-SM70-S30-C Datasheet