Async/Sync 2-Wire Short Range Modem -- SRM-5SX
from Data Connect Enterprise, Inc.

FEATURES. SRM-5TX and SRM-6TX, Asynchronous 2-wire Short Range Modems, are used for local data distribution, connecting asynchronous V.24 digital equipment. The modems operate full duplex over existing 2-wire single twisted pairs or coax cables at data rates up to 19.2 kbps, over a range of 1 km... [See More]

  • DeviceType: Async/Sync 2-Wire Short Range
  • Mounting: Standalone
  • Form Factor: External
  • Bus / Interface Type: RJ-45; Serial Ports (RS232, RS422, RS485); V.24, RJ-12
Fully Isolated Limited Distance Modem -- LDM422-P
from Dataforth Corporation

The LDM422 is a compact RS-232 to RS-422 converter which features a complete electrical isolation barrier and heavy duty electrical surge protectors. These devices feature a rugged aluminum enclosure small enough to mount on the back panel of typical computer equipment, saving valuable desk and... [See More]

  • DeviceType: Limited Distance Modem
  • Mounting: Back Panel of Computer Equipment
  • Form Factor: External
  • Bus / Interface Type: Serial Ports (RS232, RS422, RS485)
Fully Isolated Limited Distance Modem -- LDM422 Series
from OMEGA Engineering, Inc.

The LDM422 is a compact RS-232 to RS-422 converter which features a complete electrical isolation barrier and heavy duty electrical surge protectors. These devices feature a rugged aluminum enclosure small enough to mount on the back panel of typical computer equipment, saving valuable desk and... [See More]

  • DeviceType: Limited Distance Modem
  • Mounting: Standalone
  • Form Factor: External
  • Bus / Interface Type: Serial Ports (RS232, RS422, RS485); Field Connector
ISOmodem® -- Si2401
from Silicon Labs

Features. Data modem formats: 56,000 bps: V.90. 33,600 bps: V.34. 14,400 bps: V.32bis. 9600 bps: V.32. 2400 bps: V.22bis. 1200 bps: V.22, V.23, Bell 212A. 300 bps: V.21, Bell 103. Fax modem formats. 33,600 bps: V.34 half-duplex. 14,400 bps: V.17. 9600 bps: V.29. 4800 bps: V.27ter. 300 bps: V.21... [See More]

  • DeviceType: Telephone (PSTN) Modem; EPOS
  • Mounting: IC Chip
  • Form Factor: External
  • Bus / Interface Type: IC Chip Interface
RAD Short Haul Modem -- SRM-5A
from Campbell Scientific, Inc.

Two SRM-5A RAD Short Haul Modems support local communications between Campbell Scientific dataloggers and a computer with an RS-232 serial port. These asynchronous modems use a 4-wire unconditioned telephone line or the CABLE4CBL-L cable for transmission; data rates up to 9,600 bps are possible. [See More]

  • DeviceType: Short Haul
  • Mounting: Standalone
  • Form Factor: External
  • Bus / Interface Type: Serial Ports (RS232, RS422, RS485)
Compact Single Port ADSL Modem -- Model CT-5071
from Power & Tel

For residential application with routing capabilities [See More]

  • DeviceType: Asymmetric Digital Subscriber Line
  • Mounting: Standalone
  • Form Factor: External