ADLINK LittleBoard 735 - Manual (Page 15)

Chapter 2 Product Overview
LittleBoard 735 Reference Manual 9
RS232 Transceiver
(U17) Analog
Devices ADM213EARSZ RS232 Transceiver for COM1
and COM2 Transmits
and receives
RS232
signals for
serial ports 1
and 2
RS485/422
Transceiver (U19) Linear LTC1334CG#PBF RS422/485 Transceiver for
COM1 and COM2 Transmits
and receives
RS485/422
signals for
serial ports 1
and 2
RS232 Transceiver
(U21) Analog
Devices ADM213EARSZ RS232 Transceiver for COM3
and COM4 Transmits
and receives
RS232
signals for
serial ports 3
and 4
RS485/422
Transceiver (U22) Linear LTC1334CG#PBF RS422/485 Transceiver for
COM3 and COM4 Transmits
and receives
RS485/422
signals for
serial ports 3
and 4
Table 2-1. Major Integrated Circuit Descriptions and Functions (Continued)