Features WITH 6 INSTRUCTIONS: Relay control module come with open, close, Momentary, self lock, Interlock, Delay 6 instructions VARIOUS INPUT METHOD: In addition to the serial hyperterminal input, the command can also be input through for Poll CONNECT 64 DEVICES IN PARALLEL: In command mode, up to 64 devices can be connected in parallel, versatile and multifunction EXCELLENT PERFORMANCE: The command supports the 03 06 16 function code, the maximum delay under the command is 255 seconds, and the default baud rate is 9600BPS SCRATCH RESISTANT ABS: Made of good quality ABS material, possess good impact resistance, scratch resistance, environmentally friendly Specification: Item Type: Relay Control Module Material: ABS Working Voltage: DC24V Working Current: Standby 14MA, 1 relay 44MA, 2 relay 69MA, 3 relay 95MA, 4 relay 121MA, 5 relay 149MA, 6 relay 175MA, 7 relay 199MA, 8 relay 226MA, etc. Command supports 03 06 16 function code Maximum delay under command is 255 seconds Default Baud Rate: 9600BPS Baud Rate Can Be Selected By Jumper: 2400, 4800, 19200, 38400, 57600, 115200BPS Check mode can choose no check, even check, odd check Data sending return time can be set, the maximum can be set to 1000ms Package List: 1 x Relay Control Module Note: Please pay attention to correct operation. Package List 1 x Relay Control Module