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1. General
Further enhancements to GSM networks are provided by Enhanced Data rates for  GSM Evolution (EDGE) technology. EDGE provides up to three times the data capacity of GPRS. Using EDGE, operators can handle three times more subscribers than GPRS; triple their data rate per subscriber, or add extra capacity to their voice communications. EDGE uses the same TDMA (Time Division Multiple Access) frame structure, logic channel and 200 kHz carrier bandwidth as today's GSM networks, which allows it to be overlaid directly onto an existing GSM network. For many existing GSM/GPRS networks, EDGE is a simple software-upgrade.
EDGE allows the delivery of advanced mobile services such as the downloading of video and music clips, full multimedia messaging, high-speed color Internet access and e-mail on the move.
Due to the very small incremental cost of including EDGE capability in GSM network deployment, virtually all new GSM infrastructure deployments are also EDGE capable and nearly all new mid- to high-level GSM devices also include EDGE radio technology.
The Global mobile Suppliers Association (GSA) states that, as of May 2007, there were 223 commercial GSM/EDGE networks in 113 countries, from a total of 287 mobile network operator commitments in 142 countries
Maximum GPRS bandwidth can reach 171.2Kb/s and the actual application is 40~100Kb/s. Provided TCP/IP protocol connections on the system, GPRS network can be applied on Internet connection and data transmission, etc..
The GF-6000W EDGE/GPRS Modem developed by Beijing Garefowl Technology Co., Ltd. It provides mobile user’s access to Internet and can be connected directly to personal PC via serial port interface. Co-working with dialup software, the modem can automatically detect link status and redial if the link disconnects. It is a highly reliable link satisfying requirements of industrial data transmission.
2. GF-6000W EDGE/GPRS Modem Specifications
General
Frequency band:
Quad-band GSM 850MHz/EGSM900MHz /DCS1800MHz /PCS1900MHz
Output power
According to Release 99 V5:
- Class 4 (2W) for EGSM850
- Class 4 (2W) for EGSM900
- Class 1 (1W) for GSM1800
- Class 1 (1W) for GSM1900
- Class E2 (1W) for GSM 850 8-PSK
- Class E2 (1W) for GSM 900 8-PSK
- Class E2 (1W) for GSM 1800 8-PSK
- Class E2 (1W) for GSM 1900 8-PSK
Power supply
Power Supply voltage range 8 - 30V
Dimensions
75*50*16mm
Physical
Weight 200g
Operating temperature: -30℃ to +65℃ (normal)
+65℃ to +75℃ (restricted operation)
GSM/GPRS/EGPRS features
Data transfer
GPRS:
l Multislot Class 12
l Full PBCCH support
l Mobile Station Class B
l Coding Scheme 1-4
EGPRS
l Multislot Class 12
l Mobile station Class B
l Modulation and coding Scheme MCS 1-9
CSD
l V.110,RLP,non-transparent
l 2.4,4.8,9.6,14.4kbps
l USSD
PPP-stack for GPRS data transfer
SMS
l Point-to-point MT and MO
l Cell broadcast
l Text and PDU mode
l Storage: SIM card plus 25 SMS locations
l Transmission of SMS alternatively over CSD or GPRS.
Preferred mode can be user defined
Fax
l Group 3;Class 1
Audio
l Half rate HR
l Full rate FR
l Enhanced full rate EFR
l Adaptive multi rate AMR
Software
l AT commands
l Microsoft compatibility: RIL/NDIS for Pocket PC and Smartphone
l TCP/IP stack
l IP address: IPV6
Interface
l Standard serial Port (DB-9)：
(GF-6000W1： RS-232//GF-6000W2：RS-485//GF-6000W3：TTL)
l Fixed bit rates: 300bps to 460,800bps
l Autobauding: 1,200bps to 460,800bps
l Supports RTS/CTS hardware handshake and software XON/XOFF flow control
l Mini-SIM card reader
l Antenna connector SMA (male)
l Operating status LED(power, Ring, data and status)
External watchdog design:
5minutes/15minutes/60minutes Restart when no data transferred
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