The Sewa K-336 (Product Code: K336, KT Ref: KTI0401200WNCPS) is an industrial-grade wireless call display receiver engineered for centralized paging, attendant monitoring, and alert management across commercial facilities. Understanding hardware interoperability, signaling frequencies, and peripheral capacity ensures seamless deployment within structured nurse call, hospitality, and corporate paging infrastructures.
RF Transmission Frequency and Peripheral Transmitter Capacity
The K-336 panel operates strictly on the 433.92 MHz radio frequency (RF) band. It integrates directly with standard 433.92 MHz wireless transmitter hardware, enabling wireless communication without structured network cabling:
- Transmitter Pairing Capacity: The receiver can register, store, and distinguish up to 999 unique wireless call buttons.
- Simultaneous Real-Time Display: Features a high-visibility panel that simultaneously displays 3 active groups of incoming call numbers.
- Queue Memory Buffer: Integrates an internal call-management buffer capable of storing up to 30 sequential calls in queue when incoming requests exceed the active screen groups.
- Peripheral Power Provision: If individual 433.92 MHz wireless call buttons or push-button transmitters deployed with the system require dry cells or batteries (they are not included), verify transmitter battery voltage independently.
Multi-Key Signaling and Service Designation Decoding
The Sewa K-336 receiver firmware decodes multi-service paging keys to distinguish operational requirements. When paired with compatible multi-function 433.92 MHz buttons, the display provides alpha-prefix identification directly on the display face:
- C Prefix: Decodes and presents general 'Call' events, suited for patient assistance, room service, or office executive summons.
- D Prefix: Decodes and displays 'Drink' requests, matching dedicated beverage or hospitality calling controls.
- B Prefix: Decodes and registers 'Bill' requests for point-of-sale and payment settlement dispatching.
Operational Modes and Sector Integration
The firmware embedded within the K-336 accommodates multiple operating modes tailored to specific institutional workflows:
- Hospital Mode: Tailored for clinic wards, patient bedsides, and nurse station integration, operating as a centralized nurse call monitoring panel.
- Restaurant Mode: Configured for dining halls, kitchens, cafes, and hospitality venues coordinating table-to-waiter service requests.
- Office Mode: Designed for executive cabins, conference rooms, and commercial facilities operating as an attendant and administrative paging terminal.
Electrical Specifications and Hardware Form Factor
The display receiver features a durable aluminum alloy shell body measuring 410 mm (length) x 160 mm (height) x 38 mm (depth) with an overall net weight of 850 grams. It is engineered for secure wall-mounted installation at service stations, supervisor counters, and nurse reception desks.
For electrical supply, the unit operates across an input range of DC 12V to DC 18V with a minimal operating current consumption of less than 10 mA (
