(No.RA032)1-292.6.4 D-Sub 25-pin connector specificationPin No. Pin Name I/O Signal Type Rating and ConditionParameter Min Typ Max Unit1 NC - - -2 RXD1 I Digital Input Voltage Range -30 30 VThreshold Low 0.5 1.3 VThreshold High 1.60 2.45 VBaud Rate - 300k bpsCL 100 pF3 TXD1 O Digital Voltage Swing (3kΩ Load) ±5 ±5.2 VBaud Rate - 300k bpsCL 100 pF4 AUXIO9 I/O Digital VIH 4 - 5.2 VVIL -0.5 - 1 VVOH (Io=-1.5mA) 4 - 5.2 VVOL (Io=1.5mA) - - 1.1 VCTS (RS-232C) I Digital Input Voltage Range -30 30 VThreshold Low 0.5 1.3 VThreshold High 1.75 2.6 V5 DI I Analog Input Voltage range(STD Deviation)- 0.5 - Vp-pFreq Response (STD Dev.)20~9600Hz-3 3 dBRTS (RS-232C) O Digital Voltage Swing (3kΩ Load) ±5 ±5.2 V6 MI2 I Analog Audio Level (STD Deviation) - 5 - mVrmsAllowable Freq 300 3000 HzInput Impedance - 600 - Ω7 GND - GND8 AUXIO8 I/O Digital VIH 4 - 5.2 VVIL -0.5 - 1 VVOH (Io=-1.5mA) 4 - 5.2 VVOL (Io=1.5mA) - - 1.1 V9 TXD2 O Digital VOH (Io=-1.5mA) 3.7 - 5.2 VVOL (Io=1.5mA) - - 1.1 VCL 100 pF10 RXD2 I Digital VIH 2.8 - 5.2 VVIL - - 0.65 VCL 100 pF11 GND - GND12 AUXIO7 I/O Digital VIH 4 - 5.2 VVIL -0.5 - 1 VVOH (Io=-1.5mA) 3.7 - 5.2 VVOL (Io=1.5mA) - - 1.1 V13 AUXIO6 I/O Digital VIH 4 - 5.2 VVIL -0.5 - 1 VVOH (Io=-1.5mA) 3.7 - 5.2 VVOL (Io=1.5mA) - - 1.1 V
