Huawei ECC500 User Manual page 24

ECC500 (Data Center)
User Manual
Ports
Table 3-4
Table 3-4 Port description
Silk screen
FE
RS485/RS232
COM1
COM2
Issue 06 (2020-01-06)
describes the ports on the main control module.
Description
Ethernet port connecting to the northbound equipment and transmitting
data after encrypting it, allowing client access over the local network or
a remote network and access to third-party network management
system
 Transmits data
− 1: TX+
− 2: TX-
 Receives data
− 3: RX+
− 6: RX-
Reserved northbound port
 Transmits data
− 1: 485_TX+
− 2: 485_TX-
− 7: RS232_TXD sharing the UART with RS485 within the same
RJ45 port
 Receives data
− 3: RS232_RXD sharing the UART with RS485 within the same
RJ45 interface
− 4: 485_RX+
− 5: 485_RX-
 GND: 6, 8
Southbound RS485 port connecting to the natural-ventilation
equipment
 Receives data
− 1: RX+
− 2: RX-
 Transmits data
− 4: TX+
− 5: TX-
Reserved southbound RS485 port
 Receives data
− 1: RX+
− 2: RX-
 Transmits data
− 4: TX+
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