Manual

33
8 Make COM Cable
The keyboard standard accessories package includes the following items.
z One DB9
z Seven DB9
z One six-pin crystal port
z One 25-pin (DB25)
z One 485 transmission box. (Including one power source.)
8.1 Make RS232 COM Cable
Please refer to the following figure for RS232 port information. See Figure 8-1.
RS232 serial port RS232serial port
（DB9） （DB9）
Figure 8-1
8.2 Make RS485 COM Cable
You can refer to Figure 8-2 if you are connecting the keyboard with the switcher box.
RS485 port of keyboard RS485 switch box port
（Green alarm socket） （6-pin crystal ）
Figure 8-2
PIN1 ： RS485 B line
PIN2 ：RS485 A line
PIN3 ：RS485 B line
PIN4 ：RS485 A line
PIN5 ：RS485 B line
PIN6 ：RS485 A line
8.3 25-pin Port and Switch Box Connection