The SOLT SB6 series emergency call/cancel transmitter (models SB6-2XWH-S and SB6-3XWH-S, KT Automation reference KTI040120SLTSB62) is engineered for surface-mounted deployment in commercial, healthcare, and hospitality facilities. Designed specifically for high-risk zones such as accessible restrooms, disabled toilets, washrooms, clinics, and patient care areas, the transmitter provides immediate assistance signaling via its integrated twisted pull cord and faceplate cancel switch.
Pre-Installation RF Site Considerations
The SB6 transmitter incorporates an internal built-in PCB antenna operating on the 400 MHz band using low-power FSK (Frequency-Shift Keying) modulation. Because the transmitter radiates an omnidirectional 360-degree RF signal pattern, line-of-sight to the receiver is not strictly mandatory. However, system integrators should consider the surrounding architectural structure during site layout:
- Position the unit away from continuous metal cladding, large metallic junction boxes, or heavy sheet metal partitions that could attenuate the 400 MHz FSK signal.
- Ensure the wireless transmission path to compatible receivers—such as SOLT SM3 series multi-digit display panels, SL6 corridor dome lights, or portable SP7 series staff pagers—is tested before final fixation.
- Because the device operates on self-contained coin cell batteries (they are not included), no conduit routing, in-wall signal wiring, or external power supply drops are required.
Mounting Location and Ergonomic Height Planning
Proper placement is vital for compliance and accessibility in toilet and washroom environments. The SB6 housing features a compact profile measuring 100 mm in height, 60 mm in width, and 16.5 mm in depth, finished in white. The mechanical pull mechanism is equipped with a twisted drop cord extending up to 1 meter in length, terminated with an ergonomic pull handle pendant.
When establishing wall-mount placement:
- Mount the main transmitter base securely on the wall surface at a height that allows the 1-meter pull string to dangle freely, terminating between 100 mm and 200 mm above the finished floor level. This critical drop ensures that a fallen individual can easily reach and activate the cord from floor level.
- Verify that the separate faceplate 'Cancel' button is mounted within standard reach (typically between 800 mm and 1200 mm above the floor) so responding staff can acknowledge and reset the call locally upon arrival.
- Ensure the drop cord hangs free of towel rails, grab bars, sanitary dispensers, or opening doors to prevent snagging or false trigger events.
Commissioning and RF Verification
Once secured to the wall surface, install the designated coin cell batteries (they are not included) to activate the internal electronics. Commission the transmitter into the wider SOLT nurse call or attendant system following standard operational checks:
| Verification Step | Action | Expected Response |
|---|---|---|
| Primary Call Activation | Pull the drop pendant firmly downward to actuate the switch. | High-brightness LED indicator flashes on the faceplate; 400 MHz FSK alert registers on the SM3 central receiver panel, SL6 corridor lamp, or SP7 pagers. |
| Local Call Cancellation | Press the dedicated 'Cancel' push button on the SB6 transmitter faceplate. | LED indicator illuminates to confirm transmission; active call status resets across receiver displays and corridor lights. |
| Battery Status Check | Observe LED intensity during activation sequence. | Dim illumination or failure to flash indicates coin cell batteries (they are not included) are depleted and need replacement (typical operating service life is 1 to 3 years). |
