Acer Veriton S661 Aspire M5620 Service Guide - Page 26

Serial Port Item Serial port controller Serial port controller resident bus Number of serial port 16550 UART support Connector type Optional serial port I/O address (via BIOS setup) Optional serial port IRQ (via BIOS setup) USB Port Specification ITE 8718 ISA bus 2 Yes 9-pin D-type female connector COM1: 2F8h, 3E8h, 2E8h COM2: 3E8h, 3F8h, 2F8h COM1: IRQ 3, and 4 COM2: IRQ 4, and 3 Universal HCI USB Class Item USB Connectors Quantity Specification USB 2.0 Support legacy keyboard for legacy mode 6 back panel ports 4 ports for front daughter board 2 ports for 3.5'' card reader module Environmental Requirements Item Temperature Operating Non-operating Humidity Operating Non-operating Vibration Operating (unpacked) Specification +5°C ~ +35°C -20 ~ +60°C (Storage package) 15% to 80% RH 10% to 90% RH 5 ~ 500 Hz: 2.20g RMS random, 10 minutes per axis in all 3 axes 5 ~500 Hz: 1.09g RMS random, 1 hour per axis in all 3 axes 20