Cp Hardware; Cp Software Requirements - Nortel Passport 15000 Hardware Description

152 Chapter 4 Control and function processors

CP hardware

CP software requirements

241-1501-200 5.2S2
• "CP software requirements" (page 152)
• "CP cables" (page 153)
• "Ethernet CP pinout and signal names" (page 158)
• "V.24 CP pinout and signal names" (page 158)
• "CP line rate" (page 159)
• "CP compliance with standards" (page 159)
The CP consists of a motherboard, a memory daughter card, and a power
supply daughter card, with a hard disk mounted on the motherboard.
The CP connects to the shelf backplane, providing an interface to both fabric
cards. It performs activities associated with the fabric cards and routing data
through the switch.
The CP interface supports these functions
• disk interface
• stratum clock
• real-time clock (for example, for the time-of-day clock)
• shelf alarm circuitry
• external interfaces, including a V.24 DCE port for Preside MDM
connectivity, a 10Base-T Ethernet port for OAM of CP2, and 100Base-T
Ethernet for OAM of CP3
• building integrated timing supply (BITS) from the alarm/BITS module
(if connected to the site source)
The CP hard disk drive stores the Passport software, configuration data, and
spooled information.
See the following tables for minimum software requirements of
Passport 15000 and 20000 CPs: