Specification: _x005f_x000D_ Origin: Mainland China _x005f_x000D_ 1: DC 12V (12V version), DC 24V (24V version) _x005f_x000D_ 2: Standby current (all relays are closed) 13MA, 1 relay is open 41MA, 2 relay is open 69MA, 3 relay is open 95MA, 4 relay is open 122MA, 5 relay is open 149MA, 6 relay is open 174MA, 7 relay is open 198MA, 8 relay is open relay 225MA _x005f_x000D_ 3: 8 photoelectrically isolated input ports (NPN low-level active), the input-output relationship can be set to associated (default) or unassociated through commands. _x005f_x000D_ 4: 6 commands of "open", "open", "instantaneous", "self-locking", "interlocking" and "delay" _x005f_x000D_ 5: MODBUS RTU command, supports 03 06 16 function code _x005f_x000D_ 6: Under the "Delay" command, the maximum delay is 255 seconds; _x005f_x000D_ 8: In MODBUS command mode, up to 64 devices can be supported in parallel. _x005f_x000D_ 9: The default baud rate is 9600BPS. Baud rate can be selected by jumper: 2400 4800 9600 19200BPS _x005f_x000D_ 10: Overall dimensions: 136*72*20mm (PCB board only); 140*88*42mm (including DIN rail box) _x005f_x000D_ 11: Weight: 134g (PCB board only); 223g ( _x005f_x000D_ 12 Maximum load: 10A/250VAC, 10A/125VAC, 10A/30VDC, 10A/28VDC, 10A/12VDC _x005f_x000D_ _x005f_x000D_ Product model: UM72 _x005f_x000D_ Color: green _x005f_x000D_ Width: Applicable PCB board width UM72 (72mm) _x005f_x000D_ Insulation level: flame retardant VO level _x005f_x000D_ Backplane length: suitable for 136mm PCB board _x005f_x000D_ Net weight: 99 grams _x005f_x000D_ Installation method: DIN35 and C45 rail _x005f_x000D_ application: _x005f_x000D_ PLC IO expansion board _x005f_x000D_ PTZ CCTV camera _x005f_x000D_ Security Monitoring _x005f_x000D_ recognition system; _x005f_x000D_ Motor positive and negative directions _x005f_x000D_ Automatic curtain control _x005f_x000D_ _x005f_x000D_ Product size: 139.00x81.00x42.00mm _x005f_x000D_ Product size: 5.47x3.19x1.65inch _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 x UART RS485 Relay Module