Black Box G.703 NTU w/V35, Manual

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G.703 NTU W/V35
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1. General Information
Thank you for your purchase of this Black Box product. If any questions arise
during installation or use of the unit, contact Black Box Tech Support at
(724) 746-5500.
1.1 Features
• Terminates G.703 E1 service (2.048 Mbps)
• Switch-selectable AMI or HDB3 line encoding options
• Local loopback diagnostics
• Internal, External, and G.703 network timing
• CE approval
• 100-240VAC
• Conforms to ONP requirements CTR 12 for connection to international Tele-
com networks
1.2 Description
The MT331A receives clear channel E1/G.703 (2.048 Mbps) data from the
telco’s digital data network. The MT331A terminates the G.703 telco interface
and converts the data for transmission to a user-oriented serial. The MT331A can
connect to a Router, FRAD, PABX or Multiplexer over its serial interface at
2.048 Mbps.