Pin Connection Diagrams
This section provides pin connection diagrams for converting A6748A/A6749A serial ports to AD278A/AD279A serial ports.
Table 9 provides pin diagrams for converting A6748A/A6749A
Table 9: Converting A6748A/A6749A
RJ45 Pin | RJ45 | RS 232 | RS 232 Signal | DB25 Pin |
Plug | Jack Pin | Signal | Description | Number |
Number | Number |
|
| (AD278A/ |
(A6748A/ | (A6748A |
|
| AD279A |
A6749A | /A6749A |
|
| Solution) |
Solution) | Solution) |
|
|
|
|
|
|
|
|
Pin # 1 |
| RI | Ring Indicator | Pin # 22 |
Pin # 2 |
| RTS | Request to | Pin # 4 |
|
|
| Send |
|
Pin # 3 |
| DTR | Data Terminal | Pin # 20 |
|
|
| Ready |
|
Pin # 4 |
| RXD | Received Data | Pin # 3 |
Pin # 5 |
| GND | Chassis |
|
|
|
| Ground |
|
Pin # 6 |
| TXD | Transmitted | Pin # 2 |
|
|
| Data |
|
Pin # 7 |
| GND | Signal Ground | Pin # 7 |
Pin # 8 |
| DCD | Data Carrier | Pin # 8 |
|
|
| Detect |
|
Pin # 9 |
| CTS | Clear to Send | Pin # 5 |
Pin # 10 |
| DSR | Data Set | Pin # 6 |
|
|
| Ready |
|