
odular E1/T1 or Fractional E1/T1 Access Units Supporting Megaplex-
100 Modules
FCD-E1M, FCD-T1M
Figure 2. SDH Access Solution for Multiple Remote Sites
MANAGEMENT AND MAINTENANCE
• Setup, control and monitoring of
status and diagnostics
information can be activated via:
ASCII terminal connected to the
async control port command
line interpreter
SNMP management connected
to the async control port.
• FCD-E1M and FCD-T1M have an
internal SNMP agent and can be
controlled by any generic SNMP
station or by the GUI-based
RADview SNMP network
management application.
• FCD-E1M and FCD-T1M support
dial-in and dial-out modem
connections. These connections
can be used for remote
out-of-band configuration,
monitoring and for sending
callout alarm messages using
serial V.24 SLIP, PPP, or Ethernet
ports.
• Inband management on the
FCD-E1M can be performed by
using the spare bits (Sa bits) on
TS 0 or by using a dedicated
timeslot using standard protocols,
Frame Relay (RFC 1490), PPP,
and standard RIP2 routing. This
allows setup, monitoring and
diagnostics of the remote unit.
Inband access using spare bits on
TS 0 is possible only if those bits
are transparently passed
end-to-end.
• Inband management on the
FCD-T1M can be performed by
using the Facility Data Link (FDL)
in the ESF framing format or by
using a dedicated timeslot. This
allows setup, monitoring and
diagnostics of the remote unit.
Inband access using the FDL is
possible only if the FDL is
transparently passed end-to-end.
• Maintenance capabilities include
user-activated local and remote
loopbacks on the E1/T1 main link,
sub-E1/T1, and data ports.
• The user can activate a BER test
for each data or sub-E1/T1 port,
individually. Each data or
sub-E1/T1 port responds to an
ANSI FT1 RDL (T1E1.2/93-003)
inband loop code, generated by
the remote FCD-E1M/FCD-T1M,
DXC, or dedicated test equipment
in a specific bundle of timeslots
allocated only to that port. In
addition, FCD-T1M responds to
network activated loops (PLB, LLB)
when configured as CSU.
• When operating with CRC-4,
E1 network statistics are stored in
memory according to RFC-1406.
Statistical information may be
retrieved locally through the
control port.
• When operating in the ESF
format, T1 network statistics are
stored in memory according to
ANSI and AT&T standards.
Statistical information may be
retrieved by the service provider
(ANSI only) or locally through the
control port.
Kommentare zu diesen Handbüchern