31.3 Rear Panel1.3.1 NKB1000 SeriesPlease refer to Figure 1-2 for keyboard port information.Figure 1-2Please refer to the following sheet for detailed information.SN Name1 USB port2 RS422 port3 RS485 port4 Network port5 RS232 port6 Power socket1.3.2 KB1000 SeriesPlease refer to Figure 1-3 for keyboard port information.Figure 1-3Please refer to the following sheet for detailed information.SN Name1 USB port2 RS422 port3 RS485 port4 Power socket1.3.3 KBD1000 SeriesPlease refer to Figure 1-4 for keyboard port information.