MEN BL51E, Руководство пользователя

Страница: 69 / 110

Functional Description
20BL51E00 E2

2020-03-27 Page 69
3.21 RS422/RS485
The BL51E supports:

Data rate:
- up to 1 Mbit/s

Software configurable as full-duplex or half-duplex
Note: The data lines are not equipped with termination resistors.
3.21.1 Front Connection
Table 52. Connector types – 9-pin D-Sub receptacle
3.21.1.1 Full-Duplex Operation
Table 53. Pin assignment – RS422/485 full duplex (9-pin D-Sub receptacle)
3.21.1.2 Half-Duplex Operation
Table 54. Pin assignment – RS422/485 half duplex (9-pin D-Sub receptacle)
3.21.2 Signal Mnemonics
Table 55. Signal mnemonics – RS422/RS485
Connector Type
On BL51E 9-pin D-Sub receptacle according to DIN41652/MIL-C-24308, with thread
bolt UNC4-40
Mating 9-pin D-Sub plug according to DIN41652/MIL-C-24308
1 - 6 I-VCC
2 - 7 -
3 TX+ 8 TX-
4 RX+ 9 RX-
5 I-GND
1 - 6 I-VCC
2 - 7 -
3 RX/TX+ 8 RX/TX-
4 - 9 -
5 I-GND
Signal Direction Description
GND - Ground
I-GND - Isolated reference potential
I-VCC out Isolated power supply
RX+/- in Receive data lines
TX+/- out Transmit data lines
1
6
5
9
1
6
5
9