Summary of Contents for ADC ETU-911A
- Page 1 DSL G.S ORLD UICK NSTALLATION ETU-911A, ETU-912A, ETU-914A G.SHDSL ELECTABLE ETSI T ERMINATION NITS...
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Page 2: Application Interface
AC power failure occurs. PPLICATION NTERFACE The ETU-911A has an E1 G.703 interface that can be configured for an impedance of 75Ω unbalanced or 120Ω balanced. Data is structured or unstructured according to the G.704 framing standard and, optionally, CRC-4 multiframed according to the G.706 standard. -
Page 3: Switch Settings
OFF 3 and 4 = OFF 1 2 3 4 Figure 1. ETU-911A and ETU-914A 120/75 Ω G.703 Switch Settings The ETU chassis must be connected to earth ground for protection of the equipment and for personnel safety. -
Page 5: Rear -Panel Cable Connections
If using an external power-fail alarm, fabricate a cable that connects alarm-relay pins 5 (NC), 7 (NO), and 14 (C) of the ALARM connector to the external alarm (the ALARM connector is designated 120Ω\ALARM on ETU-911A and ETU-914A). DSL S... - Page 6 Table 1. Front-Panel LED Functions Mode Description SHDSL SYNC Steady green SHDSL loop is ready to transmit and receive data. Slow flashing SHDSL loop acquisition is in progress. SHDSL loop is not configured. SHDSL ALM Steady red Margin is below set threshold (MAL alarm).
- Page 7 ADC during the 90-day warranty period is, at ADC’s option, either (a) return of the price paid or (b) repair or replace of the software. ADC also warrants that, for a period of thirty (30) days from the date of purchase, the media on which software is stored will be free from material defects under normal use.