DM-D500 + DP-501 Base plate DM-D500 DP-501 Connector for power supply connection Connector for DM-D500 connection Connector for power extension cable connection Connector for computer connection (serial) DM-D connector JP2 JP1 Connector for printer connection (serial) DM-D500 + DP-502 DM-D500 DP-502 DM-D500 cable (for printer connection) 12