All-in-One System Power Supply/ Peripherals Open Frame Monitor Industrial Computer Chassis Video Capture Solutions Industrial Computing Solutions 4-port/8-port non-isolated RS-232 serial communication PC/104 modules PM-1004 PM-1028-8 Bus Interface PC/104 Number of Ports 4-port 8-port Interrupt Level 3, 4, 5, 7, 9, 10, 11, 12 Chipset TI 16C554A Baud Rate Seiral Port 16C550-compatible UARTs Connectors (40-pin; 2.54 box header) 1 x 4-port RS-232/RS-422/RS-485 2 x 4-port RS-232 Power Consumption +5V@0.6A (max.) Operating Temperature 0°C ~ 60°C Dimensions 96 mm x 90 mm Driver Support Windows®NT, Windows®2000, Windows®XP, Windows®CE and Linux Part No. Description PM-1004-R20 4-port non-isolated RS-232/422/485 serial communication PC/104 module PM-1028-8-R20 8-port non-isolated RS-232 serial communications PC/104 module 1 x 4-port non-isolated RS-232/422/485 serial communication PC/104 module 1 x 4-port RS-422/485 connection cable 1 x RS-232 cable 1 x Mini jumper pack 1 x Utility CD Shipped with 4-port RS-232 connection cable PM-1028 PM-1004 Shipped with 4-port RS-422/485 connection cable PM-1004/1028-8-2017-V10 PM-1004/1028-8 4-port Non-isolated RS-232/422/485 Serial Communication PC/104 Module