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Digital radio extension of telephone channel RT-868, range of 864-868 MHz |
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RT-868
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Transfer of 1-st telephone channel (G.711, 64 kbps) on distance up to 10 km.
Capacity of the transmitter 10 mW, a range of 864-868 MHz.
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RT-868/1E
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Transfer of 1-st telephone channel (G.711, 64 kbps) and Ethernet (10Base-T, 64 kbps)
On distance up to 20 km.
Capacity of the transmitter 10 mW, a range of 864-868 MHz.
read more |
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RT-868/M
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Transfer of the data link of telemetry (RS-485, 57.6 kbps)
On distance up to 20 km.
Capacity of the transmitter 10 mW, a range of 864-868 MHz.
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Digital radio extension of telephone channel RT-868 |
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The Radio extension of model "RT-868" is intended for the organization of one telephone user's channel in naeunei-suburban networks on distance up to 10 km (under condition of direct radio visibility).
The Radio extension of model "RT-868" works in a strip of frequencies of 864,0-868,0 MHz, capacity of radiation of the transmitter less than 10 mW. The method of time division of reception and transfer is used. Width of one radio channel - 200,0 KHz. The quantity of radio channels in width 200,0 KHz in a strip of 864,0-868,0 MHz, thus, is made with 20 pieces
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RT-868 transfers a telephone signal under standard G.711 (64 kbps) that provides an opportunity of work in the channel of fax machines and modems, an output in Internet on a switched line.
Consists of two ? complect - station and removed complect.
Structurally complect "RT-868" is the tight plastic cylinder established in immediate proximity at the aerial (length of a cable less than 1).
To case " RT-868 " "pair" from the user's complete set of automatic telephone exchange (on stationary complect) or from a telephone set (on user's complect) moves.
Power supplies are carried out by a pressure 48-72 In from station or from a power unit 220/60 In on user's complect, that provides an opportunity of carrying out of the send-receive block on distance up to several hundreds meters from automatic telephone exchange or the subscriber.
Maintenance of peak efficiency of use of a strip of
a radio channel of 864,0-868,0 MHz will be carried out
due to decrease in speed of a group stream from a part
"RT-868" channel make the equipment by methods of compression
of voice channels (on G.729). |
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| The Basic Characteristics |
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| The Interface with telephone lines:
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Two-wire user's |
| Speed of transfer, kbps: |
64 |
| The Range of radio frequencies, MHz:
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868-870 |
| The Step of a grid of frequencies,
KHz: |
100 |
| Capacity of the transmitter, mW: |
10 |
| Type of the aerial: |
The Wave channel |
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Digital integrated (oaeaoii+Ethernet) radio extension RT-868/1E |
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RT-868/1E it is intended for the organization of one telephone user's channel and the data link in standard Ethernet 64 kbps.
The Product has two ports: telephone and port Ethernet 10 Base-T. The basic operating mode - data transmission Ethernet. Transition in a mode of the telephone channel occurs automatically at rise by the subscriber of a tube or receipt of a call signal from automatic telephone exchange. After clearing the telephone channel there is an automatic switching in a mode of data transmission.
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RT-868/1E it is intended for the organization of territorially distributed integrated departmental networks (banks, power, administration, school, etc.), and also for installation of telephones in naeunei-suburban networks.
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| The Basic Characteristics |
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| The Interface with telephone lines:
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Two-wire user's, 64 kbps on G.711
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| The Interface of the data link: |
Ethernet 10 BASE-T, 128 kbps |
| The Range of radio frequencies, MHz:
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868-870 |
| The Step of a grid of frequencies,
KHz: |
100 |
| Capacity of the transmitter, mW: |
10 |
| Type of the aerial: |
The Wave channel |
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Radio modem RT-868/M |
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Radio modem RT-868/M is updating of radio extension RT-868.
It is intended for data transmission in format RS-485 with a speed 57 kbps for transfer of the telemetering information.
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| The Basic Characteristics |
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| The Interface with telephone lines:
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Two-wire user's, 64 kbps on G.711
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| The Interface of the data link: |
Ethernet 10 BASE-T, 128 kbps |
| The Range of radio frequencies, MHz:
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868-870 |
| The Step of a grid of frequencies,
KHz: |
100 |
| Capacity of the transmitter, mW: |
10 |
| Type of the aerial: |
The Wave channel |
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