BPC-7977 COM
来自ARM Wiki
COM1：
| Pin |
信号名称
|
| 1 |
HDCD#1TX-DATA-
|
| 2 |
HSIN1TX+DATA+
|
| 3 |
HSOUT1RX+
|
| 4 |
HDTR#1RX
|
| 5 |
GND
|
| 6 |
COM1_DSR#
|
| 7 |
COM1_RTS#
|
| 8 |
COM1_CTS#
|
| 9 |
COM1_RI_L
|
COM2：
| 信号名称 |
Pin |
Pin |
信号名称
|
| HDCD#2TX-DATA- |
1 |
2 |
COM2_DSR#
|
| HSIN2TX+DATA+ |
3 |
4 |
COM2_RTS#
|
| HSOUT2RX+ |
5 |
6 |
COM2_CTS#
|
| HDTR#2RX |
7 |
8 |
COM2_RI_L
|
| GND |
9 |
10 |
GND
|
COM1 跳线功能设置（J1，J2，J3）：
| COM1 RS232 PORT |
COM1 RS422 PORT |
COM1 RS485 PORT
|
| J1 |
1-3 2-4 |
J1 |
3-5 4-6 |
J1 |
3-5 4-6
|
| J2 |
1-3 2-4 |
J2 |
3-5 4-6 |
J2 |
3-5 4-6
|
| J3 |
1-2 |
J3 |
3-4 |
J3 |
5-6 7-8
|
COM2 跳线功能设置（J4，J5，J6）：
| COM2 RS232 PORT |
COM2 RS422 PORT |
COM2 RS485 PORT
|
| J4 |
1-3 2-4 |
J4 |
3-5 4-6 |
J4 |
3-5 4-6
|
| J5 |
1-3 2-4 |
J5 |
3-5 4-6 |
J5 |
3-5 4-6
|
| J6 |
1-2 |
J6 |
3-4 |
J6 |
5-6 7-8
|
