Subrate Multiplexers

RAD's Kilomux-2100 subrate multiplexer and Kilomux-2104 subrate multiplexer combine data, voice, fax, and LAN traffic over digital data services, leased lines, ISDN, IP, and fractional E1/T1 lines on any kind of access media: copper, fiber, radio, microwave, or satellite.

Especially suited for the satellite environment, the Kilomux-2100 subrate multiplexer and Kilomux-2104 subrate multiplexer contain an elastic buffer to deal with the long delay introduced by the wireless path. Supporting SCADA, the Kilomux subrate multiplexers are also particularly suitable for utility companies.

The Kilomux-2100 subrate multiplexer and Kilomux-2104 multiplexer employ time division multiplexing (TDM) to ensure minimal delay and protocol transparency. Featuring TDMoIP® circuit emulation technology, Kilomux traffic can also be transparently transported over IP or Ethernet-based networks.

• Flexible modular chassis enables quick deployment of various data and voice services

• Minimal end-to-end delay support high quality satellite communications

• Advanced voice compression maximizes bandwidth utilization to save on costs

The Kilomux-2100 subrate multiplexer and Kilomux-2104 subrate multiplexer provide an efficient and cost-effective solution for integrating data, voice, fax, and LAN traffic over digital data services, leased lines, IP, ISDN, and other services. Access to the various services is provided over a variety of standard interfaces at data rates ranging from 9.6 kbps to 1,536 kbps.

Many interfaces are available on the aggregate links for compatibility with digital data services worldwide. These include V.35, V.36/V.11, RS-530, V.24/RS-232, X.21, and G.703 codirectional. Built-in CSU/DSU, fractional E1/T1, fiber optic, ISDN terminal adapters, and TDMoIP are also available. Soft-selectable timing options from either the link or any channel are standard for all interfaces, as is support for control signals.

Standard 8-bit buffers on both the transmit and receive lines, as well as an optional onboard 256-bit satellite buffer, enable the use of any type of access media. These include leased lines, fiber, radio, microwave, and satellite links.

The Kilomux-2100 supports a secondary link, which can be configured in several ways:

• As a backup link, which can be connected to a dial-up modem, switched digital service or ISDN basic rate line.

• As an active, secondary link with load-sharing option providing double capacity. This mode supports "priority bumping", which allows the most important channels to continue functioning in the event of a failure on either link.

• As an additional, active link, thus enabling communication with two independent Kilomux units at different sites. In this configuration, the KDI module can provide drop-and-insert and bypass capabilities between the two links.

Main link modules include:

KML.1/N for V.35 interface

KML.2/N for V.24/RS-232 interface

KML.3/N for V.36/RS-422/RS-530 interface

KML.4/N for X.21 interface

KML.5/N for G.703, codirectional interface

KML.6/N CSU/DSU for standard DDS (US) or built-in short range modem (9.6, 19.2, 56 kbps)

KML.7 for fractional T1 interface

KML.8 for connection to a fractional E1 interface

KML.10 built-in ISDN terminal adapter for one or two “B” channels; supports dedicated or switched connection

KML.F Fiber optic main link fiber optic main link eliminates the need for an external fiber optic modem

KML.11 TDM over IP main link TDM over IP main link enables the Kilomux payload to be delivered over IP networks

KCL.2

Common logic module featuring built-in SNMP agent, software download and optional integrated Ethernet port for management

KPS.3, KPS.5, KPS.7, KPS.8

Power supply modules

KDI

Drop-and-insert and bypass module. The KDI can be used in situations where the Kilomux at the central site is communicating with two remote sites and voice/data communication is required between the remote sites. In addition, it can provide support for ring topologies and a single multidrop channel.

KM-Ringer

provides DC feed and ringer voltage for voice modules with FXS interface

KAI

Alarm indication module for rear panel viewing of most front panel indicators

I/O modules are available for many types of traffic. Low and high bit rate data (sync and async) channels can be combined with voice and fax circuits for maximum bandwidth utilization. Advanced technology in voice compression allows a choice between toll quality ADPCM, PCM or high quality, low bit rate compressed voice, at rates as low as 4.8 kbps. In addition, internetworking modules provide LAN (Ethernet) connectivity.

Any combination of up to four or 12 I/O modules can be configured in the Kilomux-2100/2104 chassis respectively.

KLS.1/N

Low speed module supports two sync or async RS-232/V.24 data channels. Selectable data rates from 300 bps to 64 kbps.

KLS.2

Statistical multiplexing data module supports four async RS-232/V.24 channels. Selectable data rates from 300 bps to 19.2 kbps.

KHS.1

High speed module supports two sync data channels with V.35, RS-449/RS-422 or X.21 interface. Supported data rates are 32, 48, 56, 64, 128, 192, 256 and 384 kbps.

KHS.2

High speed module supports two sync data channels with V.35/RS-530, V.36/RS-530 or V.24/RS-232 interface. Supported data rates: 

- n x 2.4 kbps for link rate up to 192 kbps 

- n x 4.8 kbps for link rates of 256 kbps and 384 kbps 

- n x 9.6 kbps for link rates of 512 kbps and 768 kbps.

KHS.U

High speed module with one or two data channels, supports ISDN basic rate services even over non-ISDN facilities such as dedicated leased lines. The KHS.U operates either as NT (Network Termination) or LT (Line Termination).

KHS.703

High speed module supports two 64 kbps G.703 codirectional channels.

KVC.1M

Voice module supports two analog voice channels with ADPCM encoding at 16, 24 or 32 kbps. Also supports PCM encoding at 64 kbps (A-law). Modular analog interfaces are 2/4-wire E&M, 2-wire FXS, FXO and FXSP. Additionally, it offers pulse metering at 16 or 12 kHz and polarity reversal, as well as optional echo cancellation.

KVF.4

Voice/fax low bit rate module uses the ITU G.723.1 voice digitizing technique to provide toll quality voice at 6.4 kbps for two analog channels or an ISDN S interface channel (including D-channel compression). The card can digitize voice at rates from 4.8 kbps to 12.8 kbps and offers pulse metering at 16 or 12 kHz and polarity reversal as well as integral echo canceller. Analog interfaces supported are E&M, FXO, FXS, FXSP, and FXSW.

KVF.6

Voice/fax low bit rate module uses the ITU G.723.1 voice compression algorithm to provide toll quality voice at 6.4 kbps for a fu ll E1 or T1 trunk. The card can digitize voice at rates from 4.8 kbps to 16 kbps and supp orts in-band transparent fax transmission at rates of up to 14.4 kbps. The dual-slot module supports both CAS (DTMF,R2) and CCS (SS7,PRI) signaling methods.

KVF.8

Voice/fax low bit rate module uses the G.723.1 digitizing technique to provide toll quality at 6.4 kbps for eight analog channels. The card can digitize voice at rate s from 4.8 kbps to 16 kbps and supports in-band transparent fax transmission rates of up to 14.4 kbps.The card offers pulse metering at 16 or 12 kHz and polarity reversal as well an integral echo canceller.

All KVF modules support in-band fax for transparent fax transmission as well as V.22 and V.22bis modem data transmission. KVF.6 and KVF.8 also support V.32bis modem data transmission.

KMBE

Ethernet IP/IPX router/bridge module supports the connection of up to 256 remote workstations to main Ethernet LAN in bridge mode, and to an unlimited number of workstations in router mode. Bandwidth from 9.6 kbps to 1,280 kbps is supported on the link. Interface can be AUI, thin coax or UTP (10BaseT). The module includes all the features of the WEB RANger-II such as Single IP, Solid Firewall and RADview SNMP management.

The Kilomux offers two management options:

1) ASCII terminal – An ASCII terminal can be connected locally or remotely, using a dial-up modem.

2) RADview management station – Enables complete monitoring and control from a central management station. RADview provides direct on-line supervision, configuration and diagnostics.

The Kilomux devices include an SNMP agent and can be managed using RADview-PC or RADview-HPOV (on a UNIX platform) graphical user interface.

This provides terminal access to remote devices from any management station on the network for configuration and troubleshooting.

Audio and visual indicators provide the status of alarms and tests at the network, multiplexer, card and port levels and include all links connected to the Kilomux. Alarms are automatically logged and presented upon request unless otherwise masked.

The Kilomux incorporates numerous test features for easy maintenance and rapid fault detection. Upon operation and during normal use, automatic self-test and link-test are performed, and all problems are reported to system management.

Local and remote loops can be performed for each main link and every I/O channel. A built-in BERT can be used for testing any I/O data channel and a built-in tone injection can be used for testing any voice channel. These extensive diagnostic tests ensure quick fault discovery and recovery.

For applications requiring a small number of I/O channels, the compact Kilomux-2104 model is available. This modular unit, packaged in a 1U-high enclosure, supports four I/O modules. It accommodates up to 16 asynchronous data channels, up to eight synchronous data channels, or up to 32 analog/60 digital voice or fax channels over a single link interface. The Kilomux-2104 is fully compatible with the Kilomux-2100.

TDMoIP is a registered trademark of RAD Data Communications Ltd.