AJAX, Modules and Accessories
AJAX vhfBridge
- vhfBridge is a module for connecting Ajax security systems to third-party VHF transmitters. It provides 8 transistor outputs for connection to third-party VHF transmitters. The device is powered from 100–240V ~ mains and can be operated from a 12V⎓ backup battery.
96.05 € excl. VAT
AJAX vhfBridge
Technical specification
| General characteristics | |
| Colour | White, black |
| Installation | Indoors |
| Compatible with central units | Operates with Hub 2, Hub Plus, Hub 2 Plus |
| Compatible with range extenders | + |
| Connections | |
| Communication protocol | Jeweller: two-sided encrypted radio protocol that transmits events and alarms |
| Radio signal range | Up to 1,800 meters in a line of sight |
| Operating frequences | 868,0−868,6 МГц 868,7–869,2 MHz 863,0–870,0 MHz (depends on region) |
| Maximum radio signal power | ≤ 25 mW |
| Third-party VHF radio transmitters integration | |
| Number of potential outputs | 8 |
| Output types | High-/low-potential outputs (set by the administrator in the app) |
| Transmission types | Pulse and bistable (depends on the output type; the pulse duration is set in the app) |
| Alarms photo verification | No |
| Recommended VHF transmitters | Hawk VHF Alarm Transmitter from FSK Electronics TX750C from RDC TR-41 from Puper |
| Power supply | |
| Main power supply | 100–240V~, 50/60 Hz |
| Backup power | 12V⎓ (backup battery not included) |
| Supported battery type | 12V battery with a full charge cycle of up to 30 hours.
The maximum battery size for installation in the body is 150 × 64 × 94 mm |
| Recommended battery type | 12V battery with a capacity of 4 or 7 A⋅h |
| VHF Transmitter Power | 10.5–15.5 V⎓ (maximum output current 2 A) |
| Anti-sabotage protection | |
| Tamper | + |
| Ping interval | 12–300 sec (set by the administrator in the application) |
| Radio frequency hopping | + |
| Forgery protection | + |
| Body and configuration | |
| Operating temperature range | From -10°С to +40°С |
| Operating humidity | Up to 75% |
| Dimensions | 196 × 238 × 100 mm(with a casing) 145 × 89 × 51 mm (without a casing) |
| Weight | 840 g (with a casing) 165 g (without a casing) |
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