0.1 µF, +5V CMOS RS-232 200kBPS Transceiver with 4 Drivers, 3 Receivers, a Shutdown Pin and an Enable Pin

Low Power, +5V CMOS RS-232 100kBPS Transceiver with 4 Drivers and 4 Receivers
IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, PLASTIC, DIP-8, Power Management Circuit
IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, PLASTIC, DIP-8, Power Management Circuit
IC TRIPLE LINE TRANSCEIVER, PDSO24, MS-013AD, SOIC-24, Line Driver or Receiver

Nanahoshi Kagaku NJW-204-ADM12, 4 Pole Female Straight Cable Mount Circular Connector, Shell Size 20,Male Contacts

Nanahoshi Kagaku, 12 Pole Cable Mount Connector Socket, 20 Shell Size, Male Contacts

Nanahoshi Kagaku, 4 Pole Cable Mount Connector Socket, 20 Shell Size, Male Contacts