Chapter 2. Installation

DS-1 (PBX) Interface

The DS-1 interface provides a T1 for a PBX or other equip- ment. This port complies with ANSI T1.102. It can be soft- ware configured for either long-haul or short-haul.

Control In Port

The control port input provides an RJ-45 input from a PC or a modem for control of the TDU 120e. You can also use it as a chain input from another TDU 120e or TSU 100. For more information, see Appendix B.

Craft Port

The craft port provides the same functionality as the Con- trol Port Input. Both the craft port and the control port in- put may be connected simultaneously, but only one port may be active at a time. For more information, see Appendix B.

Control Out Port

The chain port output provides an RJ-45 output to chain control to other TDUs or to TSUs. For more information see Appendix B.

10BaseT Interface

The 10BaseT interface provides the LAN interface for managing the TDU 120e with SNMP or T-Watch PRO. For more information, see Appendix B.

External Alarm Connector

The external alarm connector provides the capability of connecting an external alarm device to the TDU 120e. The alarm relay will activate on any alarm. The relay will re- main activated until the automatic cut-off (ACO) button on the front panel is pushed. For more information, see Appendix B.

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TDU 120e User Manual

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ADTRAN TDU 120e user manual DS-1 PBX Interface, Control In Port, Craft Port, Control Out Port, 10BaseT Interface