User's Manual
Table Of Contents
- Legal Notice
- Open-Source License Information
- About this Document
- General Compliance and Safety
- Regulatory Notices
- EU WEEE
- EU RoHS
- Regulatory Notices (4.9GHz Model)
- Safety Notices
- Exalt Limited Hardware Warranty
- Introduction
- Pre-installation Tasks
- System Installation and Initiation Process
- Installation
- Configuration and Management
- Command Line Interface (CLI)
- CLI Screens and Menus
- Exalt Graphical User Interface (GUI)
- Quick-Start
- Navigating the GUI
- Radio Information Page
- Administration Settings Page
- System Configuration Page
- Ethernet Interface Configuration Page
- T1/E1 Configuration Pages
- File Transfer Page
- File Activation Page
- Simple Network Management Protocol (SNMP) Configuration
- Alarms Page
- Performance Page
- Event Log Page
- Diagnostic Charts Page
- Spectrum Analyzer Page
- Reboot Page
- Manual Page
- Troubleshooting
- General Practices
- Typical Indications of Issues
- Improper RF Cable Termination
- Multipath Propagation
- RF Interference
- Path Obstruction
- Misaligned Antenna
- Faulty Antenna
- Improper Grounding
- Insufficient Link Margin
- Moisture in the Transmission System
- Physical Specifications
- Common System Specifications
- EX-2.4i System Specifications
- EX-4.9i System Specifications
- EX-5i System Specifications, 5.3 GHz Band
- EX-5i System Specifications, 5.4 GHz Band
- EX-5i System Specifications, 5.8 GHz Band
- Interfaces
- Back-to-back Bench Testing
- DC Coupler for Antenna Alignment
- Interface Connections
- DIP Switch Settings (-16 Models Only)
- Copyright Notices
- Index
Exalt Communications, Inc.
Exalt i-Series Installation and Management Guide
5000001 85
2007-04-15
Figure 28 E1 Interface Configuration page (standard models)
T1/E1 Loopback
Loopback is provided for any enabled T1 or E1 port. As shown in Figure 29 and Figure
30, the choices are:
• No Loopback (default)
• External (local)
• External (remote)
• Internal
Note: Only one Internal loopback can be enabled at any time.
All loopback configurations control the loop at the Line Interface integrated circuit,
which is the device wired directly to the front panel ports.
External loopback modes are used in conjunction with an external test source. The
designation of ‘local’ or ‘remote’ refers to where the loopback is occurring relative to the
location where the loopback is implemented. That is, on the radio being accessed, if
External (remote) is selected, this loops the signal back at the remote radio interface back
towards the local radio. Likewise, if External (local) is selected, the signal loops back at
the local interface towards the remote radio (Figure 29 and Figure 30).