Short Haul Modems

The ic232IP, asynchronous, Short Haul Modem, overcomes the limited distances of the RS-232 standard by converting DCE/DTE equipment to full duplex 2 twisted pair wire (Category 3 or better). The ic232IP-SM operates up to 10 Km depending on the wire gauge and data rate. ...more

FEATURES: DataSpy® Status Display; Full Duplex & Handshake; Loopback & DTE/DCE Switch; DC to 19.2 KBPS; Supports DTR & DCD; Optically Isolated. The Model 224 RS-232 Line Driver with Control Signals and LCD Display provides for transmission of a handshake signal in each direction, in addition to communicating full duplex data up to 19.2 KBPS and pro ...more

FEATURES: DC TO 19.2 KBPS; Optically Isolated; TD & RD LED's; Loopback Switch; Built-In Surge Protection; Male or Female Connectors; Screw Terminals and RJ-11. The Model 72A Optically Isolated Line Driver links RS-232 based devices over extended distances. It provides optical isolation and has built-in verification of operation using a loopback swi ...more

FEATURES: Synchronous Transmission from 1.2 to 19.2 KBPS; Async Transmission from 0 to 19.2 KBPS; Clocking from Internal, External or Received Data; No AC or DC Power; 3 Miles at 19.2 KBPS; Screw Terminals and RJ-11. The Model 92 RS-232 Sync-Async Line Driver offers all the versatility a user could desire. Full async and sync performance in one uni ...more

FEATURES: Eliminates Ground Loops; 19.2 KBPS at 2 Miles;TD and RD Indicators; Use in Pairs as Double Isolated Short Haul Modems; Use in Pairs as Double Isolated Short Haul Modem. Total isolation between RS-232 based systems and RS-422. Unique circuitry allows the RS-422 port to withstand surges exceeding 10 kilovolts. A switch is included to revers ...more

FEATURES: 110/220 Volt Power Supply; Fully Connectorized Backplane; Built-In Indicator Test; Field Expandable; 22 Short Haul Modems or Converters. The Model 76 Card Cage System is a series of fully integrated enclosures which accept various Telebyte modules. The basic features of all the card cages are: Fully connectorized backplanes (which allow m ...more

FEATURES: Single/Multimode Fiber Optics; 850nm & 1300nm; Line Loopback & Fiber Loopback Modes; Intensive Diagnostics; Local Alarm Contacts; Standalone/Rack Mount. The 78X Series of fiber optic modems provide an extremely reliable, high performance alternative for extending T1 or E1 circuits over fiber cables. The series also includes both multimod ...more

FEATURES: 4 Bi-Directional Signals; 0 to 256 KBPS; Up to Three Miles; High Speed Short Haul Modem; 100 KBPS at 4,000 Feet. The 63-3 and 63-4 provide long distance transmission (up to 4000 feet at 100 KBPS) for data and three control signals in each direction using RS-422 signaling. The 63-3 is used when the RS-232 device is a DCE. The 63-4 is used ...more