Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
• Fiber Optic or Electric Interfaces
The IMUX 2000 can be equipped with either electrical
T1/E1 interfaces or Optical Interface Adapters (OIA’s).
The electrical
T1 interface is equipped with Line Build-
Out (LBO) networks for operation of up to 6,000 feet from
the DSX. The OIA’s are available in a wide range of mul-
timode, single-mode, LED or laser combinations to ac-
commodate 1300nm and 1550nm wavelengths.
• Channel Interfaces
A wide range of interfaces unique to the utility and the
transportation market is offered. It also offers a wide range
of Voice and Data, Status, Telemetry, Ethernet, Transfer
Trip and Video channel interfaces to meet most commu-
nications requirements.
• Fast Restoration
When applied to diverse communication routes, such as Ring
or Hot-Standby networks, the IMUX 2000 is capable of switch
times programmable down to 1 millisecond.
• Diverse Networks
The IMUX 2000 supports many types of network layouts
such as Linear, Spurs, Hot-Standby and Ring topologies.
It is also designed for operation over SONET/SDH net-
works taking into consideration the critical time-delay is-
sues associated with Protective Relaying.
• SONET and SDH Applications
Protective Relaying can finally be applied over non-pro-
prietary SONET/SDH equipment. With emphasis placed
on rapid break healing, the IMUX 2000 addresses the
critical time issues associated with Protective Relaying
making it the ideal and Intelligent choice when interfac-
ing to SONET/SDH networks. The IMUX 2000 bridges
the gap between SONET and substations providing DS0
gateways onto the network. Also, through its own switch-
ing techniques, can overcome the longer switch times
and unequal channel delay issues associated with
SONET.
• Automation
The IMUX 2000 offers the ultimate GUI Network Man-
agement system which operates in a Windows
TM
point-
and-click environment. The optional SNMP based man-
agement reporting software can be used when integrated
as part of a larger enterprise system. Network visibility
is available from any node which allows remote provi-
sioning, monitoring and alarm reporting.
• Substation Hardened
The IMUX 2000 T1/E1 Multiplehxer is designed for harsh
environments and has a wide temperature range of -20°C
to +65°C (-4°F to +149°F). It meets the IEEE/ANSI stan-
dards C.37.90-1989, C.37.90.1 and C.37.90.2 for SWC,
fast transient and EMI. It is CE approved and has been
tested to BS EN 5002:1995. It is also FCC part 15 Class
A approved.
• Reliability
The IMUX 2000 provides enhanced reliability by offering
optional redundant power supplies and common logic
modules.
• Speed
The IMUX 2000 is designed to handle time sensitive ap-
plications such as Protective Relaying. The Drop-and-
Insert through-channel delay is less than 25 microsec-
onds. The IMUX 2000 has an average reframe time of
less than 25 milliseconds and also has the ability to en-
able a Fast Reframing Channel (FRC) for less than 1
millisecond reframing.
• DS0 Squelching
The IMUX 2000 T1/E1 Multiplexer has the ability to squelch
(turn off) the output of a channel module in the Multiplexer
upon loss of synchronization. This feature provides se-
curity against false tripping on 4-wire analog transfer trip
channels and older digital equipment (with limited error
checking) during loss of sync and protects against ‘pink’
noise conditions, which result from cross-talk or the frame
search. This feature is ideal for preventing false tripping
due to system malfunction.
• CSU Functionality
The IMUX 2000 offers a built in CSU functionality that
meets applicable standards for protection including FCC
Part 68 approval for direct connection into the Public
Switched Telephone Network (PSTN). When enabled,
the unit will respond to generated loopback codes compli-
ant to either ANSI T1.403 or AT&T TR 54016. It will also
maintain and allow local and remote retrieval of perfor-
mance measurements in accordance with either ANSI
T1.403 or AT&T TR 54016.
• Modular Design
The IMUX 2000 incorporates a midplane motherboard
design. Channel modules plug into the front of the unit,
and matching module adapter for I/O connections plug
into the rear. This eliminates the need for internal chas-
sis wiring when adding new channel cards, simplifying
the upgrade.
IMUX 2000 T1/E1
2
April 2007
Key Features and Benefits
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