GP-R56 Modem is high speed hayes compatible Data/Fax/Voice Modem which can be used with various types of computers and terminals. It supports two wire full duplex dial up line and two wire full duplex leased line. Inlay "WATCH DOG" inside, in case of Modem system halted, automatic Reset of Modem ,suitable for the environment with no guard.

Feature：
* Compatible with
ITU-TV.90(56,000bps),K56Flex(56,000bps),V.34(33,600bps),V.32bis(14,400bps)
V.32(9600/4800bps),V.22bis(2400bps),V.22,V.21(300bps),V.23(1200bps/75bps)
* Provides Hayes AT command
* Provides MNP4, ITU-T V.42 error correction and MNP5, ITU-T V.42bis data compression
* DTE Speed 115200/76800/57600/38400/19200/9600/4800/2400/1200/300bps
* Supports GIII Fax with EIA Class 1 and Class 2 command
* Utilizes full duplex asynchronous transmission with a maximum effective throughput of 115200bps
* Flow control CTS/RTS,XON/XOFF,DTR/DSR
* Provides Microcom Networking Protocol (MNP) Class 10 to ensure best performance during Cellular  Phone communication.
* Provides MNP4, ITU-T V.42 error correction and MNP5, ITU-T V.42bis data compression
* Provides 2 wire full duplex dial up line and leased line operation
* 8 Leased Line, Powered or not powered, Line Distance: up to 14 KM (9 miles)
* Receive sensitivity -43dBm
* Transmit lenel PSTN: 0-- -15dBm
  Leased line: 0-- -31dBm
* EIA RS-232 D-type 25 pin or 9 pin
* Environment operating temperature: from -20℃ to 80℃
* Storage temperature: from -30℃ to 95℃
* Power requirement: AC 100V/120V/220V/240V±20% 50/60Hz±3% DC 24V/48V110V±20%
* Dimension: 17cm*11.8cm*3cm