Nortel DMS-100 Series Maintenance Manual page 66

2-46 Star Remote System hardware
NTTR70AA/AB Star Module control (SMC) card
The NTTR70AA/AB SMC card (processor) is in the TSS card cage and
performs the following:
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There are five LEDs on the faceplate that tell operating company personnel
about alarms, the service condition, and the synchronization state of the C-side
link.
The 4 Mbytes of flash memory enable the SMC card to keep its load if the
SMC card is pulled out or the Star Module is powered down. If there is a
power failure, the Star Module recovers automatically using the on-board
memory and a fully equipped software load.
The SMC card has three DIP switches. The purpose and settings for these
switches follow.
DIP switch 3 on the SMC card defines the type of interface the Star Hub uses.
To set the distance between the DS-1 card and the cross connect or
transmission equipment, to enable ISDN 64 kbit/s clear channel signaling, and
to set the DS-1 interface to use ESF/B8ZS, switches for DIP switch 3 must be
297-8353-550 Standard 05.01 March 2001
controls the switching matrix and the connection to the host
switches 64 line cards to up to 46 DS0 channels (48 channels of two DS-1
links minus two message channels) using a switching matrix
supports up to two DS-1 links to the Star Hub
uses 4 Mbytes of flash memory and 16 Mbytes of DRAM for in-service
loading
controls the 64 line cards
controls and monitors the dc panel and LMU
supports HDLC/LAPD protocol
supports ISDN
supports digital phase lock loop (DPLL)
monitors scan and distribution points