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CRS-300 1:10 Redundancy Switch Revision 16
Front Panel Operation MN/CRS300.IOM
7–17
► For the CDM-Qx modem, the code is the decimal number indicating the problem
parameter within its MGC configuration code:
00 NO ERROR 01 ITF Interface
02 LBO T1 Line Build-Out 03 FRM Framing mode
04 TFQ Tx Frequency 05 TFT Tx FEC Type
06 TMD Tx Modulation 07 TCR Tx FEC Code Rate
08 TDR Tx Data Rate 09 TSI Tx Spectrum Invert
10 TSC Tx Scrambler state 11 TPL Tx Power Level
12 TCK Tx Clock 13 TDI Tx Data Invert
14 TXO Tx Carrier State 15 AUP AUPC enable
16 APP AUPC parameters 17 WUD Warm-Up Delay
18 TXC Tx common output state 19 TRS Tx Reed-Solomon
20 TXA Tx roll-off (alpha) factor 21 TCI Tx Data Clock Invert
22 RFQ Rx Frequency 23 RFT Rx FEC Type
24 RMD Rx Modulation 25 RCR Rx FEC Code Rate
26 RDR Rx Data Rate 27 RSI Rx Spectrum Invert
28 RDS Rx DeScrambler state 29 RDI Rx Data Invert
30 RSW Rx Sweep Width 31 EBA Eb/No Alarm point
32 BCS Rx Buffer clock source 33 RRS Rx Reed-Solomon
34 RBS Rx Buffer size/enable 35 RCI Rx Data Clock Invert
36 ERF External Reference setting 37 EFM EDMAC Framing mode
38 ESA EDMAC Slave Address range 39 TST Test mode (read-only)
40 MSK Alarm Masks 41 RTS Request-To-Send control
42 SSI Statistics Sample Interval 43 CNM CnC Mode
44 CFO CnC Frequency Offset 45 CSD CnC Min/Max Search Delay
46 CRA CnC Re-acquisition Time
SWITCH ALARM: MODEM COMMS
PROBLEM, POSITION 2
There is a fault. There is a problem with the I/O communications with Traffic Modem. The front
panel LED “Unit Status” will be RED.
Suggestions:
• Check Cable Connections – refer to Chapter 4. CABLES AND CONNECTIONS.
• Check Modem Configurations – refer to Chapter 5. MODEM, RMI/TMI, AND
SWITCH CONFIGURATION.
SWITCH ALARM: TMI:I/F
MISMATCH, POSITION 2
There is a fault. There is a mismatch of data interface type between what has been selected in the
modem menu and the TMI type that is connected to that Traffic Modem. The front panel LED
“Unit Status” will be RED.
Suggestion: Ensure the modem interface type is compatible with the TMI being used. The
CDM-600s have both TX and RX interface types. The CDM-570s just have one unit interface
type. Either edit the modem interface setting(s) or swap the TMI.