6. Communication Port
6.1 COM1 Port Wire Drawing
In order to facilitate integrated servo drive control program upgrade and maintenance
，
QC400 and PC via COM1 port to communication, COM1 port using a standard DB9
female terminal, using RS-232 interface, without the level of the adapter plate. Ports defined
below:
2#DSP_RX 1
2#DSP_TX 6
1#DSP_TX 2
1#DSP_RX 3
7
3#DSP_TX 8
3#DSP_RX 9
4
5
10
PE
Figure 6-1 COM1Port schematic
Description of each pin function as shown in Table
：
Table 6-1 COM1Terminal Signal Description
Pin Number
Signal Name
Explanation
1
2#DSP_RX
Signal receiving terminal of 2#DSP
2
1#DSP_TX
Signal transmitting terminal of 1#DSP
3
1#DSP_RX
Signal receiving terminal of 1#DSP
4
Suspended
Suspended
5
GND
Ground
6
2#DSP_TX
Signal transmitting terminal of 2#DSP
7
Suspended
Suspended
8
3#DSP_TX
Signal transmitting terminal of 3#DSP
9
3#DSP_RX
Signal receiving terminal of 3#DSP
