View ltc1196 datasheet:

Linear Technology Chronicle November 1996 Vol. 5 No. 11 A Showcase of Linear Technology’s Focus Products V.36 and X.21 protocols that are both NET1 and NET2 compliant. This chip set is ideal for Products of the Month space limited networking applications and supports all major telecom protocols for Software-Selectable Multiprotocol Chip Set remote access serial ports. In a typical application, the first Simplifies Data Networking Interface Design LTC1343 is connected to the clock and data signal lines along with the diagnostic LL The LTC®1343 multiprotocol trans- as turning on and off the echo clock and the (local loop-back) and TM (test mode) signals. ceiver and companion LTC1344 cable low power shutdown mode. The LTC1343/ The second LTC1343 is connected to the con- term