Cisco ONS 15454 SDH E1-75 Довідковий посібник - Сторінка 10
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1.4 Front Mount Electrical Connection
FMEC Slot 20 supports an electrical card in Slot 3.
•
FMEC Slot 21 supports an electrical card in Slot 4.
•
FMEC Slot 22 supports an electrical card in Slot 5.
•
FMEC Slot 23 hosts the MIC-A/P alarm and power card.
•
FMEC Slot 24 supports the MIC-C/T/P timing, craft, and power card.
•
FMEC Slot 25 supports an electrical card in Slot 13.
•
FMEC Slot 26 supports an electrical card in Slot 14.
•
FMEC Slot 27 supports an electrical card in Slot 15.
•
FMEC Slot 28 supports an electrical card in Slot 16.
•
FMEC Slot 29 supports an electrical card in Slot 17.
•
FMEC slots have symbols indicating the type of cards that you can install in the slots. Each
ONS 15454 SDH FMEC has a corresponding symbol. The symbol on the FMEC must match the symbol
on the slot.
Table 1-1
Color/Shape
Orange/Circle
Orange/Circle
Green/Star
Red/Vertical ellipse
Red/Horizontal
ellipse
Table 1-2
ONS 15454 SDH electrical FMECs.
Table 1-2
FMEC
FMEC-E1
FMEC-DS1/E1
FMEC E1-120NP
FMEC
E1-120PROA
FMEC
E1-120PROB
Cisco ONS 15454 SDH Reference Manual, R4.6
1-10
Table 1-1
shows the slot-FMEC symbol definitions.
Slot and FMEC Symbols
Definition
Electrical 75-ohm E-1 connection via 1.0/2.3 miniature coax connectors. Only
install ONS 15454 SDH FMECs with a circle symbol on the faceplate.
Electrical 120-ohm E-1 connection via DB-37 connectors. Only install
ONS 15454 SDH FMECs with a circle symbol on the faceplate.
Electrical 75-ohm E3/DS3 connection via 1.0/2.3 miniature coax connectors.
Only install ONS 15454 SDH FMECs with a star symbol on the faceplate.
Node power and interface for environmental alarms. Only install
ONS 15454 SDH FMECs with a vertical ellipse symbol on the faceplate.
Node power and LAN timing. Only install ONS 15454 SDH FMECs with a
horizontal ellipse symbol on the faceplate.
lists the number of ports, line rates, connector options, and connector locations for
FMEC, Ports, Line Rates, and Connectors
Ports
14
14
42
3 to 42
3 to 42
Line Rate per Port
Connector Type
2.048 Mbps
1.0/2.3 miniature coax
connector
2.048 Mbps
DB-37
2.048 Mbps
Molex 96-pin LFH
connector
2.048 Mbps
Molex 96-pin LFH
connector
2.048 Mbps
Molex 96-pin LFH
connector
Chapter 1
Shelf and FMEC Hardware
Connector
Location
EFCA
EFCA
EFCA
EFCA,
Slots 18 to 21
EFCA,
Slots 26 to 29
April 2008