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ProductsPartner - 911 4FS
Partner - 911 4FS 4-channel Digital Voice Logger
This model is intended for installation in office or office buildings, telecommunication cases, device racks and e.t.c.User Manual
In the table all possible modes of sound record are listed and the speed of filling of disks for 1 hour record is specified
| Sampling Rate | U-LAW algorithm | PCM-16 bit algorithm |
| 8 kHz | 28,8 Mb/h | 56,25 Mb/h |
| 16 kHz | 56,25 Mb/h | 112,5 Mb/h |
By the special order, the logger can be delivered with 32 kHz sampling rate.
Technical Characteristics
| User interface | Local menu system, graphic interface GUI on PC |
| Main information carrier capacity | HDD 2,5`` till 80 Gb HDD 3,5`` till 120 Gb |
| Total number of channel-hours of recording on 120 Gb storage device | U-law 8Kg till 5 380 hours PCM16bit till 2100 hours |
| Number of recording channels | 4 in the device. The quantity of channels is defined by the number of the devices in the system. |
| Input interface types | 4 telephone analogue line, 4 linear input |
| Audio outputs | linear output for monitoring, output for headphones with possibility of voice managing |
| Call identification | Outgoing, incoming, not answered, fax |
| Date and time synchronization | Through network |
| Input protection | > 1000 V |
| Protection actuation | >250 V |
| Input impendence (for telephone interface) | >2 MOhm (on direct(constant) current) >2 MOhm (on alternating current) |
| Input impendence (linear input) | > 47 kOhm |
| sensitivity range for telephone input | -50…+8 dB (telephone input) |
| Signal/noise ratio | > 75 dB |
| Division between channels | > 80 dB |
| Signal sampling frequency | 8 or 16 kHz |
| Codec capacity | 16 bit |
| Delay of record stop on VOX | It is managed in the range of 1 … 59 sec |
| Simultaneous other users access | Up to 2 users simultaneously to every device |
| Network interface type | RG45 twisted par Ethernet |
| Network protocol | TCP/IP, FTP, UDP, HTTP |
| Operating system | Real time DSP DOS™ by Concern ALEX |
| Power requirements | 220/110 B, 50/60 Hz. / + 8 … + 20 V (for mobile type of logger) |
| Operating temperatures | 0 … 40 °C |
| Operating humidity | till 80 % |
