E3 MUX

THE E3 MUX OFFERS A COMPREHENSIVE SOLUTION FOR THE CONCENTRATION OF UP TO SIXTEEN 2MBPS E1 BASED TRAFFIC STREAMS ONTO A SINGLE 34MBPS E3 CONNECTION.

The operation is based on a two-stage concentration mechanism. In a first stage, 4 E1 channels can be concentrated onto an 8Mbps internal E2 circuit. The second stage concentrates 4 of these E2 circuits onto a 34Mbps E3 circuit. Each E2 circuit can accept either a quad E1 module or a 10/100Base-T module with integrated bridge or router functionality operating at 8Mbps. This modular design allows to scale the number of E1 input circuits with the needs of the end-user, and allows the combination of the E1 data with Ethernet based traffic.

The equipment comes as a card for mounting into the CN4 range of card-nests. Depending on the selected card-nest, a rack-mount or desktop solution can be created. The card has an on-board SNMP agent, and supports directly TELNET, PING and TFTP through an integrated 10Base-T connection.

The unit can also be configured through the free Maintenance Application (TMA), which also gives comprehensive and visual information on the status and statistics of the E3 MUX. One of the important applications is situated in the concentration of 2Mbps-based services.

For this purpose, the E3 MUX can be combined with the cross-connect and different high-speed modem cards in the Crocus range. The global access solution is presented as a compact single shelf solution with integrated network management facilities.

E3 Mux

Features and Benefits

E3 Multiplexer with up to 16 E1 input circuits
Integrates seamlessly in CN4 product range
Ethernet port for direct SNMP and Telnet support
Advanced, free maintenance software

E3 MUX - Specifications

Input Modules

Number of input Modules: 4
Types of input Modules (field exchangeable)
Router:
10/100Base-T module with integrated router
IEEE 802.3 and 802.3u compatible

Quad E :
4x G.703 E1 circuits
Nominal line data rate 2048 kbps
Line code HDB3
Line connection 120 ohm balanced RJ45 connector DTE

Multiplexing Characteristics

E1 characteristics: ITU-T G.703, G.704, I.431,CRC-4 insertion
E3 characteristics: ITU-T G.703, 75 ohm BNC connector

E1 to E2 internal multiplexing: ITU-T G.742
E2 to E3 multiplexing: ITU-T G.751Global jitter performance: ITU-T G.823

Station Clock Interface (on CN4)

Nominal rate: 2048 kbps
Line code: HDB3

Line connection: 120 ohm balanced RJ45 connector

E3 Clocking Schemes

Internal clock: free running
Station clock: from CN4 chassis

Slave/Receive: recovered from E3 receive data
A fallback mechanism to internal clock will occur in case the configured clock is not present.

Tests

External loop-back (Loop3) for each individual E1 line
Internal loop-back (Loop4) for each individual E1 line

External loop-back (Loop3) for E3 line
Internal loop-back (Loop4) for E3 line

Front Panel Indicators

PWR : Power
LNK : LAN link condition

For each E2 input slot and E3 output:
TST : Test indicator
ERR : Error condition
LOS/LOF : Loss Of Signal/Loss Of Frame-alignment

Management Interface

Synchronous High speed bus CN4 card nest backplane connection for use with Orchid 1003 LAN controller card
Console port 9600 bps, asynchronous, 8N1, SubD 9-pin ATWIN, TMA, CLI, TML

Local 10Base-T Ethernet
Direct connection of TMA, TMA for HP OpenView, Telnet, SNMP, TFP, TMA CLI
Alarm contacts - Major, minor (See CN4)
Password protected

Mechanical Data (HxWxD)

50 x 335 x 262 mm

Power

48Vdc or 230Vac, 10W max