LINK
Telos
LINK
Telos LINK Intercom-to-Telephone Interface
This device interconnects production intercom systems with dial-up telephone lines. Anyone with access to a telephone, even a cellular phone, can instantly and automatically be connected with your intercom. Digital auto-nulling hybrids on both the telephone and intercom audio paths allows connections to be made without the usual gain and feedback problems, while maintaining natural, full-duplex operation. The result is significantly improved communication capability.
Product Weight: 3 lbs
Dimensions: 9.47"W x 7.25"D x 1.25"H
Technical Tools
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Manufacturer Specs
System
True digital.
Second generation Texas Instruments TMS320C25 processor.
8kHz sampling rate.
Digital input and output gain processing, filtering.
Trans-hybrid Loss: >40dB with pink noise or voice as test input.
Send Level to Phone Line
-10dBm average level. Maintained by internal digital AGC.
Frequency Response (caller to intercom): 200-3400Hz, ±1 dB.
Noise and Distortion (caller to intercom)
Distortion: <0. 5% THD+N, measured @ 1kHz at any caller level from -48dBm to -8dBm.
Signal-to-Noise: >60dB referenced to -18dBm phone level. >72 dB referenced to OdBm phone line level.
Monitor Audio Output
Three-pin male XLR connector. Active differential.
Typical output level OdBm. Will drive 600Ω.
Intercom Interface
Bi-lateral current source interface for standard intercom systems.
Three-pin XLR female connector.
Selectable via front panel switch for channel 1, channel 2, or balanced mode operation.
Intercom send and receive level variable from approximately -20dBv to -OdBv.
Channel 2/wet mode provides 18V at up to l00ma to power one or two standard belt packs.
Four-wire interface is provided via rear panel DB-15 connector.
Unbalanced, 600Ω, level variable from -20dBv to -OdBv.
Power supply
External plug transformer. 9V DC, 500ma.
Available for 117V/60Hz or 230V/50Hz AC.
True digital.
Second generation Texas Instruments TMS320C25 processor.
8kHz sampling rate.
Digital input and output gain processing, filtering.
Trans-hybrid Loss: >40dB with pink noise or voice as test input.
Send Level to Phone Line
-10dBm average level. Maintained by internal digital AGC.
Frequency Response (caller to intercom): 200-3400Hz, ±1 dB.
Noise and Distortion (caller to intercom)
Distortion: <0. 5% THD+N, measured @ 1kHz at any caller level from -48dBm to -8dBm.
Signal-to-Noise: >60dB referenced to -18dBm phone level. >72 dB referenced to OdBm phone line level.
Monitor Audio Output
Three-pin male XLR connector. Active differential.
Typical output level OdBm. Will drive 600Ω.
Intercom Interface
Bi-lateral current source interface for standard intercom systems.
Three-pin XLR female connector.
Selectable via front panel switch for channel 1, channel 2, or balanced mode operation.
Intercom send and receive level variable from approximately -20dBv to -OdBv.
Channel 2/wet mode provides 18V at up to l00ma to power one or two standard belt packs.
Four-wire interface is provided via rear panel DB-15 connector.
Unbalanced, 600Ω, level variable from -20dBv to -OdBv.
Power supply
External plug transformer. 9V DC, 500ma.
Available for 117V/60Hz or 230V/50Hz AC.