FEATURES: 4/8-channel Counter/Frequency Module SPECIFICATIONS: Mode : 4 channels Up/Down Counter (Up/Down) 4 channels Dir/Pulse Counter( Bi-direction) 8 channels Up Counter 8 channels Frequency Input frequency : 0~450K Hz (Frequency mode) 450K Hz max (Counter mode) Input Level : Isolated or TTL level Minimum Pulse Width : 1 sec (Frequency mode) 1 sec (Counter mode) Isolated Input Level: Logic Level 0 : +1V max Logic Level 1 : +4.5V to 30V TTL Input Level Logic Level 0 : 0V to 0.8V Logic Level 1 : 2 to 5V Programmable Digital Noise Filter : 1 ~ 32767 ±sec Programmable built-in gate time: 0.33sec (Default) Isolated Voltage : 3750Vrms Power consumption: 1W Minimum Input Current : 2mA (Isolated) EEPROM: 128 bytes Display: 1 LED as Power/Communication indicator

FEATURES: 4/8-channel Counter/Frequency Module FEATURES: Mode : 4 channels Up/Down Counter (Up/Down) 4 channels Dir/Pulse Counter( Bi-direction) 8 channels Up Counter 8 channels Frequency Input frequency : 0~450K Hz (Frequency mode) 450K Hz max (Counter mode) Input Level : Isolated or TTL level Minimum Pulse Width : 1 sec (Frequency mode) 1 sec (Counter mode) Isolated Input Level: Logic Level 0 : +1V max Logic Level 1 : +4.5V to 30V TTL Input Level Logic Level 0 : 0V to 0.8V Logic Level 1 : 2 to 5V Programmable Digital Noise Filter : 1 ~ 32767 ±sec Programmable built-in gate time: 0.33sec (Default) Isolated Voltage : 3750Vrms Power consumption: 1W Minimum Input Current : 2mA (Isolated) EEPROM: 128 bytes Display: 1 LED as Power/Communication indicator

8-channel Counter/Frequency Module Mode : 8-channels Up Counter 4-channel Pulse/Dir Counter 4-channel Quadrant Counter 4-channel CW/CCW Counter 8 channels Frequency Input frequency : 0~450K Hz (Frequency mode) 450K Hz max (Counter mode) Input Level : Isolated or TTL level Isolated Input Level Logic Level 0 : +1V max Logic Level 1 : +4.5V to 30V Programmable TTL Input Level Programmable Logic Level 0 : 0V to 4V Programmable Logic Level 1 : 1 to 4.5V Programmable Digital Noise Filter : 1~32767 £g sec Isolated Voltage : 2500 Vdc Power consumption:1W Display : 1 LED as Power/Communication indicator

8-channel Counter/Frequency Module Mode : 8-channels Up Counter 4-channel Pulse/Dir Counter 4-channel Quadrant Counter 4-channel CW/CCW Counter 8 channels Frequency Input frequency : 0~450K Hz (Frequency mode) 450K Hz max (Counter mode) Input Level : Isolated or TTL level Isolated Input Level Logic Level 0 : +1V max Logic Level 1 : +4.5V to 30V Programmable TTL Input Level Programmable Logic Level 0 : 0V to 4V Programmable Logic Level 1 : 1 to 4.5V Programmable Digital Noise Filter : 1~32767 £g sec Isolated Voltage : 2500 Vdc Power consumption:1W Display : 1 LED as Power/Communication indicator

FEATURES: 2-port RS-232 Module SPECIFICATIONS: Parallel I/O Module RS-232 Channels: 2 16550 compatible Internal 16 bytes FIFO Transmission speed: 921.6K BPS max. Modem control TXD, RXD, RTS, CTS, DSR, DTR, DCD, RI, GND Shared Interrupt Support interrupt driven software library Surge protection Support VxCOM library Power Consumption: 1W

FEATURES: 2-port RS-232 Module SPECIFICATIONS: Parallel I/O Module RS-232 Channels: 2 16550 compatible Internal 16 bytes FIFO Transmission speed: 921.6K BPS max. Modem control TXD, RXD, RTS, CTS, DSR, DTR, DCD, RI, GND Shared Interrupt Support interrupt driven software library Surge protection Support VxCOM library Power Consumption: 1W

FEATURES: 4-port RS-232 Module SPECIFICATIONS: Parallel I/O Module RS-232 Channels: 4 16550 compatible Internal 16 bytes FIFO Transmission speed: 921.6K BPS max. Modem control TXD, RXD, RTS, CTS, DSR, DTR, DCD, RI, GND Shared Interrupt Support interrupt driven software library Support VxCOM library Power Consumption: 1W

FEATURES: 4-port RS-232 Module SPECIFICATIONS: Parallel I/O Module RS-232 Channels: 4 16550 compatible Internal 16 bytes FIFO Transmission speed: 921.6K BPS max. Modem control TXD, RXD, RTS, CTS, DSR, DTR, DCD, RI, GND Shared Interrupt Support interrupt driven software library Support VxCOM library Power Consumption: 1W