DXC-100
Multiservice Access Nodes
• All DXC-100 and DXC-100PSX
management functions are
performed on the standalone
unit’s DSMC.2 system manager
module or the stack’s DXNM
master system manager module.
In both cases the same rear
DSMC.2 interface module is used.
The DSMC.2 has the following
physical management ports:
Supervision terminal: VT-100
compliant serial data interface
for local access
Dial-in modem: integral
auto-answer modem for remote
dial-up access
10/100BaseT Ethernet: IP-based
LAN connection supporting local
or remote multiple Telnet
sessions or EMS access via
SNMP.
In addition, the DSMC.2 rear
interface module contains dry
contacts for sending alarms.
DIAGNOSTICS
• All the modules posses a
comprehensive suite of integral
diagnostic tools that are controlled
from any of the management
interfaces. These diagnostics
conform to the appropriate
international standards for testing
such applications.
• Each I/O module supports a
number of embedded loopbacks
(local or remote) and bit error rate
(BER) diagnostics. BER testing on
the D8HS module is performed at
n × 56/64kbps rate. On all other
modules BER testing is performed
at a framed or unframed aggregate
level.
TIMING
• DXC-100 can use network
synchronized timing or internal
timing. Network synchronized
timing includes line timing that is
provided via the channel cards, or
external timing provided by
standalone reference timing
equipment (such as a Building
Integrated Timing Source [BITS]).
The internal timing source is a
Stratum 3 clock, which can be
used as a reference to generate
the system clocking signals.
• DXC-100 allows the selection of
up to three reference clock
sources. Should a reference clock
fail and auto mode is configured,
DXC-100 will automatically select
an alternate input based on the
configuration settings for the
source clock.
SPECIFICATIONS
• Maximum Number of Ports
See Table 2
Table 2. System Capacity
Ports Stand-
alone
8 Units
(stacked)
n × 56/64 kbps 80 640
E1, T1 88 688
E3, T3 11 80
STM-1, OC-3 4 8
Router 10 80
• Compliance
NEBS Level 3, CE, CSA, FCC, UL
• Chassis
6U high, up to 8 units stackable,
11 I/O slots per chassis
• Timing
Network synchronized timing:
Line timing, provided via the
channel cards
External timing, provided by
standalone reference timing
equipment
Internal Timing: Stratum 3 clock
• Diagnostics
Local and remote loopbacks and
BER test on all module ports
Figure 3. Remote Grooming
(15 paginas)
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