Signaling service processing platform

Board	Physical Port	Function	Description
Quantity
SDM	COM1 serial port	This port is used for local commissioning, maintenance, configuration, and local or remote connection management.	The communication standard is RS232, the interface type is RJ-45, and the baud rate is 115,200 bit/s.	1
	COM2 serial port	This port is used for configuration and management of the power distribution box (PDB) in the cabinet.	The communication standard is RS485, the interface type is RJ-45, and the baud rate is 115,200 bit/s.	1
	ETH network port	This port is used for implementing user operation and management, for example, running MML commands and operating on the WebUI.	It is a standard FE network port. It supports 10/100 Mbit/s Base-T auto-negotiation. It is connected to an FTP5 cable through an RJ-45 connector.	1

Service Interfaces

• 
  USI Boards
  
• 
  SWI Boards
  
• 
  ETI Boards
  

The service interfaces on various back boards of the SPS are described as follows.

USI Boards

In the universal service interface (USI) board names, A and B represent the version, and digits 0, 1, 2, and 3 represent the board configuration models. Boards with the same basic functions but different configurations are named separately for identification.
Figure 1, Figure 2, Figure 3, and Figure 4 show the location of service interfaces on various USI boards. Table 1 describes the specifications of service interfaces on various USI boards.
Figure 1 Location of service interfaces on the USI2 board

Figure 2 Location of service interfaces on the USIA1 board

Figure 3 Location of service interfaces on the USIA7 board

Figure 4 Location of service interfaces on the USIB0 board

Table 1 Specifications of service interfaces on USI boards