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Base Station Controller 

(BSC 2212)

General Information

Base Station Controller-2212 is the central component of RM Mobile Data system.

The BSC-2212 provides error-free, digital communication between a host computer and multiple mobile units, over a full-duplex, FM radio channel. The BSC Channel contention among the mobile units is managed by the BSC using Digital Sense Multiple Access (DSMA) techniques. Automatic Gain Control (AGC) circuits in the BSC compensate for variations in mobile signal deviation.

The BSC-2212 installs at the transmitter site, and is interfaced directly with the base radio. It automatically controls the operation of the radio during digital transmission.

Communication with the host computer is implemented over Ethernet or a RS232C data port, usually via telephone modem or microwave links from the control center. The BSC uses a specially-developed host message protocol to ensure fast and accurate communication with the host.

Versatile to be used across multiple industries, from government and public safety, to security services and private fleet management, the Patriot All-In-One Mobile Data Computer is the products of choice. The Patriot all-in-one MDC has a range of convenient and efficient features, some of which are listed below. Contact a RadioMobile representative to get more information

Details

 Provides error-free, digital communication between a host computer and multiple mobile units, over a full-duplex, FM radio channel.

 

 Installs at the transmitter site, and is interfaced directly with the base radio.

 

 It automatically controls the operation of the radio during digital transmission.

 

 Communication with the host computer is implemented over Ethernet or a RS232C data port, usually via telephone modem or microwave links from the control center.

 

 Uses a specially-developed host message protocol that guarantees fast and accurate communication with the host.

Radio Protocol

 Radio Modulation 4800 bps: Nyquist Filtered Bipolar (NFB). 9600 bps: 2 level Pulse Amplitude Modulation (PAM) with spectral precoding. 22k: 4 level FSK

 

 Channel Contention Combination of Digital Sense Multiple Access (DSMA) and ALOHA

 

 Forward Error Corrections 4800 bps: Modified Reed-Solomon. Single bursts of 56 bit errors are correctable. 9600 ― 22k bps: Interleaved Modified Reed-Solomon. Single bursts of 96 bit errors are correctable.

 

 Address Capacity: 4800 bps: 4096. 9600 bps ― 22k: 1,048,576

 

 Dynamic Group IDs: 7 maximum + All Call ID

 

 CW Identifier User programmable to 12 characters

 

Radio Interface

 Transmit Audio Level 0 ― 10 Vpp in 0.25 dB Steps

 

 Transmit Driving Ability 600 ohms minimum load resistance. Stable with any output loading

 

 Receive Audio Level 100 mVpp to 10 Vpp

 

 Receive Input Impedance 100k Ohm

 

 Equalization DSP Equalizes transmit and receive audio distortion

 

 Automatic Gain Control 4800 bps, 9600 bps: AGC in Base Station Controller receives messages with deviation between 700 Hz and 7000 Hz. 9600 bps: Adjustable AGC 4.8k ― 22k

 

 Base Station DB25P, DTE, 19k ― 56k; DCD from Telco Modem Controls Base Station Controller power; Ethernet

 

Environmental

 Humidity 0 ― 95% RH, without condensation

 

 Altitude SL to 10,000 feet

 

 Power BSC: 120/240 VAC or 10 ― 15 VDC auxiliary. 220mA

 

 Dimensions 1.75″ H x 19″ W x 8″ D

 

 Weight 3 lb

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San Diego, CA 92121

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