Huawei SST1AUX Board Product Overview Huawei SST1AUX Board provides various management interfaces and auxiliary interfaces for the system and provides functions and features such as centralized backup of + 3.3V power for each board of the subrack. Huawei SST1AUX Board offers network management interfaces with active and standby GSCC boards, provides OAM interfaces for remote maintenance, and provides inter-board communication interfaces. And also provide various external auxiliary interfaces, such as F & f, OAM, F1, clock input and output interfaces. Brand Huawei Model SST1AUX Management Interface Provide OAM / F & f interface and support X.25 protocol. Provide 10M / 100M network management interface. Clock interface Provides two BITS clock input interfaces and two output interfaces. The interface impedance is 120?. Digital interface Provides three-channel input and one-channel switch alarm interface. External single board communication interface Provides an external single board communication interface COM. Internal communication Realize the inter-board communication function between the boards of the subrack. Power backup and detection It monitors two independent -48V power supplies of the subrack and detects overvoltage (-72V) and Undervoltage (-38.4V). It provides the centralized backup function of + 3.3V power supply for each board of the subrack (secondary power supply of each board: 1: N protection), and the backup 3.3V power is 80W. Overvoltage (3.8V) and undervoltage (3.1V) detection for 3.3V backup voltage. Audible alarm Support audible alarm and alarm removal function. Network port connection status detection R2AUX supports network port connection status detection. Note: The COM port is for internal debugging only and cannot be used for normal device monitoring. Otherwise, the Ethernet communication between boards may be abnormal. Huawei SST1AUX Board Product Features Common configurations of OSN3500 equipment: SSNESUBRACK enhanced subrack, SSN4GSCC system control, and communication board SSN1AUX, system auxiliary interface board and SSN1PIUB power interface board are required accessories, SSN1SXCSA supercross clock board and SSN1GXCSA cross clock board must choose one of the configurations. OSN3500 equipment service optional boards have STM-64 optical interface boards, such as SL16, SLD16, SLQ16, SF16, SLQ1, etc., STM-64 optical interface boards, such as SL64, SLD64, SF64, etc ., STM-4 optical interface boards, Such as SL4, SLQA, SLD4, etc., STM-1 optical interface boards, such as SLT1, SL01, etc. Other auxiliary function boards such as PDH board, Ethernet switchboard, and Ethernet transmission board
