Adsl modem Overview The adsl ld-4202 is a high speed adsl2+ modem, combined an all-in-one adsl switch, usb, ethernet. The adsl ld-4202 supports adsl, adsl2 and adsl2+ over the existing copper lines, with downstream transmission rate up to 24mbps (adsl2+) and upstream transmission rate up to 1.024 mbps. They can support pppoa (rfc 2364 - ppp over aal5), pppoe (rfc 2516 - ppp over ethernet) and rfc 1483 encapsulation over atm (bridged or routed). The adsl ld-4202 is capable of establish 2 connections at the same time with ethernet interface and usb interface respectively. It can provide the users over its usb or ethernet interface to share broadband access to the internet. Visual indicators: 1 status leds: power, adsl, lan, rxd, txd Environment: Operating temperature: 0ª~40ªc Storage temperature: -40ª~85ªc Humidity: 10%~90% Certification: Ce, fcc
Modem External basic ADSL modem for single computers. Connection to PC is USB. ull rate speed support up to 8MBps The modems are ANNEX A type and there is support for major protocols: G.DMT, T1.413, PPPoA, PPPoE, T1.483 Issue 2 G.992.1, G992.2. 9x/Me/NT/2000/XP. Qty: 7000 pcs in-stock Brand new, bulk packed (20 in box) Warranty 1 year Price $7 each , or make offer to take all FOB Helsinki , Finland Bulk, 20 pcs in a box
Modem speed touch 330 usb adsl modem qty 1900 pcs
Industrial GPRS data collection device for digital signals of industrial systems and pulse signals of residential meters Cost-effective, C-rail mountable industrial modem for receiving digital signals and collecting pulse signals of residential meters. The modem is capable of continuously counting the pulse signals of up to 4 meter systems. The device transmits the calculated input signal values through Modbus TCP protocol to query servers Modbus TCP. The queries of the data sets are performed periodically (e.g. in every 15 minutes) depending on the server value set. When it has to receive signals from more than 4 devices, we suggest using the M2M IO/RS485 CONCENTRATOR�® which has 32 input lines. In this case the device requests the concentrator input counter status through the modems RS485 interface, and fowards the received Modbus RTU reply through Modbus TCP protocol to query the servers Modbus TCP. The modem can initiate queries through its RS485 interface towards several concentrators input lines. Furthermore, the modem can switch external devices (optionally) with the help of its 2 relay outputs. Communication Supporting GSM/GPRS (Gemalto�® industrial module) 4 inputs (digital or pulse/voltage) 2 relay outputs (optional) Software/Configuration Modbus protocol communication Modbus Gateway Consumption meter compatibility (receiving and counting pulse signals) Configuration software (on RS232 or RS485 port) Extras Memory for storage of applications, data (with ftp possibility) External IO-expansion (optional for receiving 32 inputs per module) Firmware upgrades (ftp server) Safety External battery connection (spare power supply) Watchdog circuit and system monitoring, log Automatic mobile network connection recovery Application Data collection (digital or pulse signal) Forwarding data of industrial systems Smart metering (remote readout) Measurement and data collecting systems Remote monitoring of devices Monitoring of input lines Remote control (optional)
