2-7

Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Chapter 2 Common Control Cards
2.2 2.2.1 TCC2 Card Functionality

Figure 2-1 TCC2 Card Faceplate and Block Diagram

2.2.1 TCC2 Card Functionality

The TCC2 card supports multichannel, high-level data link control (HDLC) processing for the DCC. Up

to 84 DCCs can be routed over the TCC2 card and up to 84 section DCCs can be terminated at the TCC2

card (subject to the available optical digital communication channels). The TCC2 card selects and

processes 84 DCCs to facilitate remote system management interfaces.

FAIL
A
PWR
B
ACT/STBY
ACO
CRIT
MIN
REM
SYNC
RS-232
TCP/IP
MAJ
ACO
TCC2
LAMP
BACKPLANE
Ethernet
Repeater
Mate TCC2
Ethernet Port
Backplane
Ethernet Port
(Shared with
Mate TCC2)
SDRAM Memory
& Compact Flash
FPGA
TCCA ASIC
SCL Processor
Serial
Debug
Modem
Interface
RS-232 Craft
Interface
Backplane
RS-232 Port
(Shared with
Mate TCC2)
Faceplate
RS-232 Port
Note: Only 1 RS-232 Port Can Be Active -
Backplane Port Will Supercede Faceplate Port
Faceplate
Ethernet Port
SCL Links to
All Cards
HDLC
Message
Bus
Mate TCC2
HDLC Link
Modem
Interface
(Not Used)
400MHz
Processor
Communications
Processor
SCC3
MCC1
FCC1
MCC2
FCC2SCC4
SCC1 SCC2
DCC
Processor
System
Timing
BITS Input/
Output
Ref Clocks
(all I/O Slots)
-48V PWR
Monitors
Real Time
Clock
137639