Cisco ONS 15454 SDH Especificaciones descargar pdf (Pagina 9)

Cisco ONS 15454 SDH Product Overview, R3.4

September 2002

Cisco ONS 15454 SDH Product Overview

Card Slots and Types

Data Communication Channel

The data communications channel(DCC) featuresa dedicateddata channel of 576

kBit/s (D4 to D12 bytes) between two nodes in an ONS 15454 SDH network.

Each AIC-I card provides two DCCs, DCC-A and DCC-B, through separate

RJ-45 connectors on the front of the AIC-I. Each DCC can be routed to an

individual optical interface in the ONS 15454 SDH system. DCC connection

cannot be provisioned if DCC tunneling is configured on this span.

FMECs

FMECs provide serial ports, LAN ports, a modem connection for future use,

electrical connections, redundant power supplies, timing connections, and alarm

connections for the AIC-I card. The upper shelf assembly has 12 FMEC slots

numbered 18 to 29. FMEC Slots 18 to 22 support the electrical cards in Slots

1 to 5 of the lower shelf. FMEC Slots 25 to 29 support the electrical cards in Slots

13 to 17 of the lower shelf. FMEC Slot 23 is used for the MIC-A/P alarm and

powercard. FMEC Slot 24 supports the MIC-C/T/P timing, craft, and power card.

FMEC faceplates for the E1, E3/DS3, DS1/E1, MIC-A/P, and MIC-C/T/P cards

are shown in Figure 5.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 55 56

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Cisco ONS 15454 SDH Especificaciones Pagina 9