Specifications

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Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
OL-1166-04
Chapter 2 Cisco IGX 8400 Series Cards
Channelized Voice Module
J1 Interface Back Card (BC-J1)
The BC-J1 back card provides a Japanese J1 circuit line interface for a CVM. The BC-J1 has the
following features:
• Interfaces to Japanese TTC (J1) lines as specified by JJ-20-10, JJ-20-11, and JJ-20-12.
• Support for both CAS and CCS
• Support for coded mark inversion (CMI) line coding
• Automatic local loopback testing in response to specific line alarm states
• Reporting of J1 line event information (for events such as frame loss, loss of signal, bipolar
violations, and frame errors) to the CVM front card
• Support for normal clocking and loop timing
See Figure 2-22 for a description of the BC-J1 back card faceplate. The BC-J1 back card has an
additional multiframe alignment LED. See Table 2-32 for details.
Figure 2-22 BC-J1 Faceplate
BC-J1
xxxxxx
xxxx xxx
xxxxxx
xxx xxxx
x xx
xx xx xx
LOS (red)
Red alarm (red)
Yellow alarm (yellow)
AIS (green)
MFRA (red)
MFYA (yellow)
Fail (red)
Active (green)
Warning
label
Line in
RX/TX
Line out
RXMON
TXMON
H8323