Tc35I Modem Gsm Modem Rs232 Modem

Features: No bad effect to the signal. Hing frequency two sides circuit plate, high isolation, good in-band flatness. Made by aluminium, nice looking. Applying broadband directing matching mode with fine impedance match. Technology Parameterú¦ Ltems Unit parmeter Freq range MHz 5-1000 Flatness dB í+1.2 Inserion Loss dB 15[/td] Mutual Isolation dB >33 Input terminal level defference dB

Modem speed touch 330 usb adsl modem qty 1900 pcs

In the instruments industry, the traditional 4 20 mA analog transmitters are upgrading to the fieldbus with digital communication. HART fieldbus communication has digital communication capability with compatible analog signal. HART MODEM is a necessary and convenient tool for the analog products upgrading and signal exchanging in the control plant. We provide two kinds of HART modem. HART-RS232 is the converter for HART signal to RS-232 signal. HART-USB is the converter for HART signal to PC virtual series port. Product characteristic: According to the HART physical layer specification Isolated transformer prevents the influence of earthing. Voltage signal modulator/demodulator Low power consumption designation Powered by series port or USB port Interface Type: DB9 female mount Ambient Temperature: 0 ~ 50 °C Compressive Strength :500 V AC HART bus and serial port (UART,USB) Receiving Impedance : â?¥5 K Ω, end-to-end Output Signal VPP: 600 mV â?¥ VPP â?¥ 400 mV, 500 Ω load resistance Receiving Sensitivity: 120 mV, 500 Ω test resistance HART-RS232 is the protocol converter between HART device and configurator on PC. The figure above is a sample basic case. To connect multiple HART device, please connect the other devices parallel with the Transmiter. Please note that the power should support multiple devices and the terminator should be set in the middle of the power and parallel point. HART-RS232 is a HART MODEM with voltage modulator/demodulator. To communicate with a HART device, please connect the clincher of HART port of HART-RS232 to the two terminals of the network adaptor resistance or the power of HART device. To communicate with a PC, please connect the other port of HART-RS232 to the series port of PC. The USB driver installation program should be run for HART-USB. The driver provides a virtual series ports for HART configurator software. The indication light shows the state of modem. Green LED indicates the power is working well and the modem is sending data. Red LED indicates the modem is receiving data

Contact: amily[at]veecom dot com dot cn GPRS200 MODEM as a standard RS232c interface, result in widely extending the applicable fields of GPRS. It can be applied in the desk computer, notebook computer and other control system terminal. It has a highly frequency stability. PRODUCT FEATURES: Always on-lined and high-speed connection. Easily installation: Neednf+t any driving program. It can be dialed-up using RS 232 interface with common modem. DualBand GSM/GPRS modem (EGSM900/1800MHZ,900/1900MHZ) designed for gprs Networkf=Data faxf= SMS and voice application. Transmitting speed: 115.2K BPS (theoretical), 30f¼50K BPS (under the CHINA Mobile network) Channel spaces: 200Kpbs Stability of frequency: 0.1ppm Operating temperature:-20ºC--+60ºC Storage temperature: -30ºC--+85ºC Humidity: 98% Vibration(non working): 25g. Operating power: 15mA INTERFACES RS-232C and audio through mini sub-D 9-pin connector supporting: Remote control by AT commands(GSM07.07 And 07.05) Audio use a stereo earphone connecter antenna interface 50 ohm MMCX connecter LED indecter SMA Sliding SIM holder(3V/5V SIM interface) Antenna vonnector 6V-15V DC POWER SUPORT OPERATION SYSTEM DOS,WINDWS 9X,ME,NT,2000,XPf=LINUXf=UNIXf=POCKET PCf=MAC APPLICATION: Remote controller, Integrating system. DIMENSIONS: 100x54x25mm WEIGHT: 200g.

Industrial control and remote monitoring of machinery with hart interface 100*70*26mm

GSM/GPRS 850/900/1800/1900MHz DB9 RS232 Interface GPRS class 10 max. 85.6kbps JAVA, MMS, TCP/IP,HTTP/FTP, SMTP/POP3 76*54*25mm

Product description: General Features Industrial design Aluminum casing Wireless access to internet Based on Wavecom module Q24 Plus With TCP/IP stack Internet Services: PPP,TCP, UDP, HTTP, SMTP, POP3 Open AT Flash memory 32MB, PSRAM 16MB 850/900/1800/1900MHZ 3V SIM card slot DB15 RS232 interface including RJ11 for voice(handset) SIM Application Toolkit Double tone multi-frequency function (DTMF) Send and receive voice, data, e-mail, SMS GPRS Class 10 Antenna with high sensitivity Always on-line Comply with ETSI GSM Phase2+ standard Output Power Class 4 2W @ 850/900MHz Class 1 1W @ 1800/1900MHz I Input voltage DC6V-36V Input current 1A-2A Standby current: 56mA Working current: 100-140mA Working temperature -20 to +55 degrees Storage temperature:-25 to +70 degrees. Size 95*54*25mm Weight 110g Accessories: AC/DC adaptor, DB15 RS232 cable, antenna, 2 mounting plates, CD Specification for data GPRS Class 10 max.85.6kbps(downlink PBCCH support Coding schemes CS 1,2,3,4 CSD up to 14.4kbps USSD Non-transparent mode Transparent mode Specifications for SMS via GSM/GPRS Point to point MO and MT SMS cell broadcast Text and PDU mode. Size 95*54*25mm Weight 110g.

Wireless cellular frequency: GSM 900 and 1,800MHz Supports TCP, UDP, SMTP, POP, ICMP, FTP, PPP, DHCP and DNS protocols Band rate: 1,200 to 115,200bps Antenna: 50Ω SMA female interface Serial port: (RS232, RS485) USB2.0 Power supply: 5 to 25V DC Typical: 9V DC/1A Power consumption: Peek:

GSM/GPRS modem with TCP/IP stack Qual band 850/1900MHz or 900/1800MHz RS-232 interface Open AT Command Support: SMS, MMS, Voice, Fax-depends on module Support: Windows 2000/Me/XP, SCO UNIX, SCO XEINX, Linux Features: GSM quad-band GPRS class 10 Voice/data/fax/SMS TCP/IP: Full (FTP and E-mail added). Functional features: Input/output digital: 1 Download over the air: Optional AT command set: >300 Auto-restore timer reset: Yes Voice, data and SMS features: Data circuit asynchronous, transparent and non-transparent up to 14, 400-bit/second Automatic fax group 3(class 1 and class 2) MNP2, V. 42bis Text and PDU SMS (MT/MO) UCS2 character set management Other features: Operating status LED Casing: Metal DIN rail mounting. Interface: SIM plug-in card reader: 1.8/3V RS232 on 15-pin sub-D connector Pin power supply connector: 4-pin DC SMA antenna connector (50 Ohms) Dimension metal . Size: 88 x 66 x 26mm Weight: 100g.