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Cisco ONS 15454 DWDM Engineering and Planning Guide, Release 7.x
July 2006
Chapter2 Cards Specifications
2.2.1 Common Control Cards
The node database, IP address, and system software are stored in TCC2P card nonvolatile memory,
which allows quick recovery in the event of a power or card failure.
The TCC2P card performs all system-timing functions for each ONS 15454. The TCC2P card monitors
the recoveredclocks from each traffic card and two BITS ports for frequency accuracy. The TCC2P card
selects a recoveredclock, a BITS, or an internal Stratum 3 reference as the system-timing reference. You
can provision anyof the clock inputs as primary or secondary timing sources. A slow-reference tracking
loop allows the TCC2P card to synchronize with the recovered clock, which provides holdover if the
reference is lost.
The TCC2P card supports 64/8K composite clock and 6.312 MHz timing output. The TCC2P card
monitors both supply voltage inputs on the shelf. An alarm is generated if one of the supply voltage
inputs has a voltage out of the specified range.
Install TCC2P cards in Slots 7 and 11 for redundancy.If the active TCC2P card fails, traffic switches to
the protect TCC2P card. All TCC2P card protection switches conform to protection switching standards
when the bit error rate (BER) counts are not in excess of1*10exp-3andcompletiontime is less than
50 ms.
The TCC2P card has two built-in Ethernet interface ports for accessing the system: one built-in RJ-45
port on the front faceplate for on-site craft access and a second port on the backplane. The rear Ethernet
interface is for permanent LAN access and all remote access via TCP/IP as well as for Operations
Support System (OSS) access. The front and rear Ethernet interfaces can be provisioned with different
IP addresses using CTC.
Two EIA/TIA-232 serial ports, one on the faceplate and a second on the backplane, allow for craft
interface in TL1 mode.
2.2.1.3 MS-ISC-100T Card
The MS-ISC-100T Ethernet LAN card (see Figure 2-3), which is a 12-port NEBS3 Ethernet Switch
running Cisco IOS. The MS-ISC-100T card must be equipped in an NC shelf; the preferred slots are 6
and 12. MS-ISC-100T Cisco IOS configuration is part of the software package and is automatically
loaded to the card at start-up. This configuration can be modified using the Cisco IOS command-line
interface (CLI) only. The CLI is disabled by default, but it can be enabled from the Cisco Transport
Controller (CTC) interface. All MS-ISC-100T ports are turned on by default. Using the CLI, you can
turn off ports that are not used.