The DS1 Loop Extender (DLX) module is used to extend a DS1
up to 655 feet to a digital cross-connect (DSX-1). The DLX
receives a non-return to zero (NRZ) 1.544 Mbps signal from the
DS3 Soneplex multiplexer module, converts the NRZ signal to a
bipolar DS1 signal and transmits a DS1 signal that meets the
industry standard DSX-1 template boundaries as defined by TR-
The Soneplex Quad Loop Extender (QLX) module
converts four multiplexed, DS1 signals into an
optical DS2 for delivery over singlemode optical
fibers. The optical DS2 is converted back to four
DS1s at the customer premises. It supports op-
tional 1+1 protection and provides extensive alarms
and diagnostic capabilities.
The Soneplex Loop Extender system is
an efficient, cost-effective solution for
T1-based service delivery. It supports
DS1 network interfaces and up to 28
DS1 loop transport modules. Integrated
network management lets carriers save
on overall operations costs through the
entire system lifecycle.
The Soneplex Quad Loop Extender (QLX)
module is part of ADC’s cost-effective
solution for T1-based service delivery. The
Soneplex platform supports DS1 network
interfaces on either copper or fiber using
HDSL, HDSL2, HDSL4, traditional T1 repeater
or optical DS2 technology in a single
platform. Integrated network management
lets carriers save on overall operations costs
through the entire system lifecycle.
Extender Card is an optional main-
tenance device that provides intrusive DS1 jack
access and DS1 monitoring access when used with
ADC's standard T1 Repeater (RLX) or HDSL
Central Office Module (HLXC) in the Soneplex
Loop Extender or Soneplex
The Soneplex Single Fiber Quad Loop Extender (WQLX) module converts four multiplexed DS1 signals
into an optical DS2 using wave division multiplexing (WDM) optics. Similar to ADC’s Quad Loop
Extender (QLX), the WQLX transports the signal over single mode fiber, but uses only one fiber
instead of two. The same module is also used at the remote end to convert the optical DS2 back into
four DS1s at the customer premises.
The Soneplex HDSL Remote (HLXR) module operates with ADC's
Soneplex HDSL Central Office module to provide full duplex DS1
transport over two unconditioned, non-loaded copper loops. This
200 mechanics HLXR module is compatible with a variety of
indoor and outdoor enclosures, including a network interface
device. It supports span powered HDSL service up to 12,000 feet.
One HDSL repeater extends the HDSL distance up to 24,000 feet,
or 36,000 feet with two repeaters. Three models are available,
each occupying a single slot in either a 200 or 400 style enclo-
With the recent introduction of the CPM (Continuous Performance Monitoring) module
to the remote QLX product line and Soneplex MPU software release 4.2, DS1 hicap route
diversity can now be added to the "path protection" feature associated with many fiber
rings and OCn multiplexers.
DS1 hicap route diversity allows service providers to extend path protection into the local
loop and provide complete DS1 circuit protection for critical hicap customers.
High-bit-rate digital subscriber line (HDSL) circuits for the delivery of DS1 services can
now be extended to 36,000 feet by implementing the newly introduced Soneplex main
processor unit (MPU) module with software release 5.2 and the latest version Soneplex
HDSL central office repeater and remote modules. This allows monitoring of the signals
from the central office along each span.