User's Manual
Table Of Contents
- 1.0 INTRODUCTION
- 2.0 MODEL NUMBER CODES
- 3.0 HARDWARE INSTALLATION AND BASIC INTERFACE REQUIREMENTS
- 4.0 INITIAL STARTUP AND CONFIGURATION
- 4.1 Introduction
- 4.2 STEP 1—Power up the LEDR Radios
- 4.3 STEP 2—Establish Communications with the Radio
- 4.4 STEP 3—Make Initial Login to Radio
- 4.5 STEP 4—Change the SUPER Password
- 4.6 STEP 5—Review Essential Operating Parameters
- 4.7 STEP 6—Set TCP/IP Settings to Enable SNMP and/or Telnet Management (if required)
- 4.8 STEP 7—Set User Configurable Fields
- 4.9 STEP 8—Verify Radio Performance
- 4.10 STEP 9—Install the Link
- 4.11 STEP 10—Verify the Link Performance
- 5.0 CONFIGURATION AND CONTROL VIA THE FRONT PANEL
- 6.0 CONFIGURATIONAND CONTROL VIA THE CONSOLE PORT
- 7.0 STANDARDIZING RADIO CONFIGURATIONS
- 8.0 UPGRADING LEDR FIRMWARE
- 9.0 USING ORDERWIRE
- 10.0 USING THE SERVICE CHANNEL
- 11.0 PROTECTED CONFIGURATION
- 12.0 SPACE DIVERSITY OPERATION
- 13.0 SPARE PARTS, UNITS AND ACCESSORIES
- 14.0 Fractional-T1 INTERFACE CARD 03-3846A01 Fractional-E1 INTERFACE CARD 03-3846A02
- 15.0 INCREASE BANDWIDTH BY CHANGING TRANSMITTER AND RECEIVER FILTERS
- 16.0 BENCH TESTING OF RADIOS
- 17.0 TECHNICAL REFERENCE
- 17.1 Specifications— Models: LEDR 400S, 700S, 900S and1400S
- 17.2 Specifications— Models: LEDR 400F, 900F, 1400F
- 17.3 Specifications— Protected Switch Chassis
- 17.4 Optional Equipment (Consult factory for detailed information)
- 17.5 Accessories
- 17.6 I/O Connector Pinout Information
- 17.7 Watts-dBm-Volts Conversion
- 18.0 RADIO EVENT CODES
- 19.0 IN CASE OF DIFFICULTY
MDS 05-3627A01, Rev. D LEDR Series I/O Guide 117
Diagnostics
The T1 line at each end of the link may be tested using a variety of bit
patterns. In normal operation, statistics are stored for any errors occur-
ring at the line interface, such as framing errors, bipolar violations, and
CRC errors.
Data may be looped back at the local port, through the T1 option only,
and at the remote unit. Further, the unit will respond to in-band (SF) and
data link (ESF) loopback codes at the local port.
When in ESF framing mode, the option can automatically generate per-
formance report messages.
The following alarms may be monitored & logged. They may also be
associated with a user-selectable indication (alarm contact or front panel
LED): Remote Loopback, Lost Frame, Lost Signal, Lost Analog Signal,
AIS, RAI (RYEL), MultiFrame RAI, Severely Errored Frame, Frame
Re-Align, MultiFrame AIS, Far End Block Error, Line Code Error, CRC
Errors and Frame Bit Error.
Clocking
The clock source is configurable for network, loopback, and internal
timing, with secondary selections available should the primary source
become faulty. Refer to the discussion of the
clkmode command
(Page 55) for more information
14.4 Field Installation of the FT1 Interface Board
An “S” Series LEDR radio can be fitted with a Fractional-T1 (FT1) or
Fractional-E1 (FE1)Interface Board (Figure 28). The addition of an
FT1/FE1 board enables the radio to operate with a G.703 interface at
speeds up to 768 kbps.
To add the FT1/FE1 Interface Board to an existing LEDR radio trans-
ceiver, follow these steps:
1. Remove the top cover of the radio (4 Phillips screws).
2. Identify the installation area for the Interface Board (See Figure 29).
Remove the three Phillips screws on the main PC board which cor-
respond to the mounting holes on the Interface Board.
3. Install the threaded standoff spacers (furnished with the option
board) onto the main PC board in the holes formerly occupied by the
screws. (Note: Washers must not be used between the standoff spac-
ers and either of the PC boards.)
4. Locate connectors J912 and J913 (See Figure 29). These connectors
mate with the plugs on the bottom of the Interface board.