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VCL-MX Version 6 (Deluxe Version)
4E1 Voice and Data Drop-Insert Multiplexer


Product Overview

AceCom's 4 x E1 Multiplexer the VCL-MX, 2Mbps E1 voice and data, drop-insert (add-drop) multiplexer Version 3 (Deluxe Version) 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.

The VCL-MX, E1, Drop-Insert Multiplexer provides voice telephony and digital data services which may include:

The Multiplexer may be used in Terminal or Drop-Insert configuration to provide

  • Toll Quality Voice services
  • Interconnect LAN (Campus Network)
  • Provide LAN-WAN Interconnectivity
  • Provide Leased Lines on DSL for SOHO Applications

VCL-MX, Version 3 - Deluxe Version system includes the advanced features and capabilities, listed below:

  • 2Mbps, 4 E1 non-blocking cross-connect at 64Kbps (DS-0) level
  • 1+1 Redundant Power Supply
  • May be used in a Point-to-Point, Point-to-Multi point, Add-Drop (drop-insert), Tree and Star topology
  • Telnet
  • SNMP V2
  • In-band and Out-of-band management
  • GUI
  • Network Management System (Monitor and configure multiple units from a single central location)

Equipment Maintenance and Management features of the VCL-MX, Version 3 (Deluxe Version)

  • Serial Management Port (RS232) COM Port
  • TCP/IP - 10/100 BaseT for remote management over a LAN / TCP/IP network
  • SNMP V2 (MIB File provided with the equipment)
  • Telnet - CLI (Command Line Interface)
  • Graphical User Interface (GUI)
  • Network Management System (to monitor multiple units from a single central location).

Voice Interfaces supported

  • FXO
  • FXS
  • E&M (2Wire / 4Wire)
  • FXS-FXS (Hot-Line)
  • Ring Generator (75V RMS)
  • FXS-C-FXS-C (15-Way Conference)
  • Magneto (GEN-GEN)


  • Timing Options - Internal Clock, Loop-Timed Clock, External Clock
  • Synchronization Sources - Internal Clock, span clock timing derived from incoming HDB3 links (Loop-Timed), External Clock, 75 Ohms 2 MHz (TTL), 2.048 Mbps (BITS) Clock.
  • Default Option - Internal Clock (Stratum 3)

Data Interfaces supported

  • Channelized E1 / Fractional E1 Data
  • RS232 asynchronous data
  • iDSL @ 128Kbps
  • V.24 asynchronous data
  • RS485 asynchronous data
  • G.703, @ 64 Kbps, co-directional synchronous data
  • V.35, V.36, X.21, V.11, RS442, RS530, nx64Kbps synchronous data
  • 10BaseT Bridge Interface Card
  • Analog I/O Interface Card (Dry Relay Contacts)
  • Digital I/O Interface Card (Digital TTL Signal Transfer Card)
  • Nx64Kbps Universal Data Interface Card (user configurable data interface - V.35, V.36, X.21, V.11, RS442, RS530)
  • Complete Capability to Cross Connect Voice and Digital data between 4 incoming E1 ports (i.e. 4 separate connecting E1 links)

Analog I/O Interface Card (Dry Relay Contacts) (VCL-MX-047):
Description: This interface card provides 8 Analog I/Os which may be used to extend either Dry Relay Contacts (Relay Normally-Open or Relay Normally-Close) or operate switches remotely (using 2A Dry Relay Contacts) between any two multiplexers using a 64 Kbps time-slot. The Dry Relay Contacts are rated at maximum 2 Amps, 30 Volts DC.

Digital I/O Interface Card (Digital TTL Signal Transfer Card) (Part # VCL-MX-048):
Description: This interface card provides 8 digital I/Os which may be used to either extend digital I/Os (logic high / low) signals between any two E1 Multiplexers or operate switches remotely (using logic high/low) signals between any two multiplexers. Drivers / Sense Logic operate using external voltage and ground references).

Universal Data Interface Card: V.35 / V.36 / RS422 / V.11 / RS530 / X.21, DTE/DCE, "N" x 64Kbps Synchronous Data Interface, ONE Interface per Card - User Selectable Data Rate of "N" (1 thru 30) - DCE or DTE (User Configurable).

Application Diagrams

Front View

Front View - VCL-MX, 2Mbps E1 Drop Insert (Add Drop) Voice Data Multiplexer - Version 3 with FXO / FXS / E&M RS232 / iDSL / G.703 nX64 Interfaces: V.35 / V.36 / X.21 / RS530 / G.SHDSL / 10BaseT / Fractional E1 interfaces

Rear View

Rear View - VCL-MX, 2Mbps E1 Drop Insert (Add Drop) Voice Data Multiplexer - Version 3

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Technical specifications are subject to change without notice.
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