Toshiba TMAU1A Circuit Board Strata DK40 System

Description:

The Toshiba TMAU1A Circuit Board Strata DK40 is used as the main common control motherboard for Toshiba Strata DK40 digital key telephone systems. Commonly installed in Toshiba Strata DK40 Key Service Units (KSU) supporting business telephone systems, voice communications, paging interfaces, and external alarm and relay connections, including fire alarm monitoring interfaces. Maintenance technicians, telecom service providers, and system integrators use this circuit board for replacement of failed system motherboards, PBX repairs, telecommunications upgrades, and restoration of Strata DK40 telephone systems. 

Applications:

The Toshiba TMAU1A Circuit Board Strata DK40 serves as the primary control and interface board for Toshiba Strata DK40 business telephone systems. It manages digital station communications, optional line interface boards, paging, music-on-hold, relay outputs, alarm inputs, and system control functions. It is widely used in commercial offices, healthcare facilities, hotels, schools, industrial plants, and facilities utilizing Toshiba Strata PBX systems with building alarm and notification integration.

Technical Specifications:

• Manufacturer Part Number (MPN): TMAU1A
• Brand: Toshiba
• Series: Strata DK40
• Product Type: Common Control Motherboard / Circuit Board Assembly
• System Compatibility: Toshiba Strata DK40 Key Telephone System
• Function: Main System Control PCB
• Installation: Base Key Service Unit (KSU)
• Supports: Digital Telephone Circuits and Optional Interface PCBs
• Expansion Support: CO Line, DID, Station, Voice Mail, and Peripheral Boards
• Alarm Interface: External Alarm Relay and Building Notification Support
• Mounting: Chassis Mounted PCB
• Application: Business Telephone Systems, PBX Control, and Commercial Communications Equipment
• Service Use: OEM Replacement, Maintenance, Retrofit, and Telecommunications System Repair

Common Replacements:

• Toshiba TMAU2 Common Control Board
• Toshiba DK40i TMAU Motherboard
• Toshiba Strata CTX100 Main Processor Board