ADTRAN HDSL HTU-C/DDM+ دليل المستخدم

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JOBAID
+
61246003L2-22B
HTU-C / DDM
0003
HARDWARE SWITCHES
STATUS LEDs
HTU-C / DDM+
CLEI: T1L3B5BA_ _
STATUS  RED Alarm on any HTU-C loops, HRE loops, DSX or DS1 interface SW1
 Rotary switch sets the DSX-1 line build out
✷ FLASHING Signal Quality of 0 or No Sync on at least one loop
 YELLOW Loopbacks active
HTU-CM ✷ FLASHING In-band loopbacks armed 0 0 — sets LBO to 0-133 feet
1246003L2
 GREEN Functioning properly
1 133 — sets LBO to 133-266 feet
✷ FLASHING ES, SES, or BPV detected at either

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PRICING AND AVAILABILITY 800.827.0807 TECH SUPPORT 800.726.8663 RETURN FOR REPAIR 256.963.8722 HDSL TROUBLESHOOTING GUIDE www.adtran.com 61246003L2-22B INDICATIONS AND PROBABLE CAUSES Front Panel or Circuit Parameters Indicate Abnormal Operation Connect a terminal emulator via the RS-232 (DB-9) craft interface on faceplate. The terminal must be VT100 or compatible and set for 1.2 to 19.2 kbps, 8 data bits, no parity, 1 stop bit. Tap the space bar to establish communication with the unit.