Cisco ONS 15454 - DS3 XM-6 Hosted by XCVT; Figure 3-11 DS3 XM-6 Faceplate and Block Diagram

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Cisco ONS 15454 Reference Manual, R7.0.1
OL-9217-01
Chapter 3 Electrical Cards
3.9 3.9.3 DS3XM-6 Hosted By XCVT
Figure 3-11 DS3XM-6 Faceplate and Block Diagram
3.9.3 DS3XM-6 Hosted By XCVT
The DS3XM-6 card works in conjunction with the XCVT card. A single DS3XM-6 can demultiplex six
DS-3 signals into 168 VT1.5s that the XCVT card then manages and cross connects. XCVT cards host
a maximum of 336 bidirectional VT1.5s on two DS3XM-6 cards. In most network configurations, two
DS3XM-6 cards are paired together as working and protect cards.
3.9.4 DS3XM-6 Card-Level Indicators
Table 3-12 describes the three card-level LEDs on the DS3XM-6 card faceplate.
BTC
ASIC
6 x Line
Interface
Units
6 STS1 to
28 DS1
Mapper
FLASH
DC/DC
unit
DRAM
Mux/Demux ASIC
Protection
Relay
Matrix
6 STS-1 / STS-12
uP
6 x M13
Units
61351
Mapper unit
B
a
c
k
p
l
a
n
e
FAIL
ACT
SF
DS3XM
6
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