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Next Generation
STM-1 SDH Multiplexers with E1, E3, E4, STM-1e, STM-1o & 10/100
Mbps ethernet tributaries
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Comarra offers
state-of-the-art SDH transmission solutions
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PRI (Primary Rate Euro-ISDN) Multiplexer |
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PRI ISDN (Primary Rate Interface) Euro ISDN
Multiplexer converts 30 dial-up, analog voice circuits to a digital E1,
PRI ISDN interface. Offers all types of analog interfaces (FXO / FXS /
2W / 4W E&M). Signaling as per ITU-T Rec. Q.931 to inter-connect up to 30,
analog interfaces to an E1, PRI ISDN port. |
Product Brochure
PDF (160KB)
Product Presentation PPS
(128KB) |
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VCL-MX, E1 - 2Mbps Drop-Insert (Add-Drop)
Voice & Data Multiplexer |
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VCL-MX,
2Mbps E1 voice and data, drop-insert (add-drop) multiplexer provides full range of voice
(POTS) and digital data services to subscribers located at different locations, requiring
to interconnect and establish a voice and data network over an E1 link . The VCL-MX is available in 4 versions, each providing different
features and voice / data interfaces.
Available Interfaces FXO,
FXS, E&M, RS232, iDSL, G.703 nX64 Interfaces: V.35, V.36, X.21, RS530,
G.SHDSL, 10BaseT Ethernet / Router, Fractional E1. |
Product Brochure
PDF (560KB)
Product Presentation PPS
(608KB) |
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E3, 34Mbps Multiplexer |
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E3, 34Mbps multiplexer multiplexes 16, 2Mbps E1 electrical
tributaries into one 34Mbps electrical stream conforming to all applicable G.703, G.823 and
G.831 ITU-T (CCITT) recommendations. Available with TCP/IP Remote Access Server for remote
access and monitoring. |
Product Brochure
PDF (224KB)
Product Presentation PPS
(256KB) |
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E1 Channel Bank with Answer Supervision |
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Comarra E1 Channel Bank - the VCL-CB-BR
provides answer supervision / battery reversal / polarity reversal support. Available with FXO, FXS and 2W/4W E&M interfaces. It used in applications to deliver voice
over an end-to-end E1 (radio / fiber / HDSL) links. The interface to the analog PSTN (POTS*)
lines have been ruggedized to provide complete protection against line card failures which
occur from induced voltages from AC power lines and lightening strikes and difficult field
conditions. |
Product Brochure
PDF (120KB) |
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Technical specifications are subject to
change without notice.
All brand names and trademarks are the property of their respective owners.
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