The Sound Detection Relay shall be Alpha Communications® / Stento model SDR-113 or approved equivalent. The housing of the relay shall be a steel card cage that handles up to 25 SDR-113 boards. The model SDR-R25 allows field hook-up via rear panel mounted Euro style connectors. The unit shall contain six (6) (3 audio and 3 logical timing) potentiometers. The unit requires a 24 VDC power supply.
The SDR-113 shall operate on all 9600 series intercom systems.
Contractor shall observe all local and national electrical and building codes.
||Steel card cage handles up to 25 SDR-113 boards. Model SDRR25 allows field hook-up via rear panel mounted Euro style connectors
||5.25" H x 19.00" W x 5.00" D (134mm) x (483mm) x (127mm)
||Low level 45 ohm intercom speaker
||Ambient, 100 dB; detector, 106 dB
||More than 40 dB
|Timers:||Discriminator : adjustable 0.1 - 1.1 seconds
Window: adjustable 2.4 - 24.2 seconds
Extended: adjustable 11.0 - 33.0 seconds
||6 trimpots, gain, ambient level, filter level, discriminator timer, window timer, extended timer
||24VDC 50 mA maximum for each SDR-113 board|