The ADTRAN
Operating power is derived from an ADTRAN FT1 DP, independent of line impedance or wire gauge. The repeater uses some current, then passes the span power on to the FNID.
The
The
NOTE
Do not remove the metal shell enclosing the circuit packs.
1245211L1 FT1 RPTR
NET
CUST
LBK
| Table A. LED Indications |
|
|
LED | Description and Indications |
NET | This LED indicates the FT1 signal quality and errors on the |
| flash once when an errored second is detected on NET side loop. If the NET LED flashes yellow |
| rapidly (six times per second), sealing current is present and the FT1 Repeater is attempting to |
| synchronize with the other FT1 circuit elements. |
| Off ........ No synchronization with the FT1 DP. |
| Green .... Synchronized with good signal quality on NET loop (> 2dB margin above 10Ð7 BER) |
| Yellow .. Synchronized with marginal signal quality on NET loop (< 2 dB margin above 10Ð7 BER) |
| Red ........ Synchronized with poor signal quality on NET loop (>10Ð7 BER) |
CUST | This LED indicates the FT1 signal quality and errors on the |
| will flash once when an errored second is detected on CUST side loop. |
| Off ........ No synchronization with the FNID. |
| Green .... Synchronized with good signal quality on CUST loop (> 2dB margin above 10Ð7 BER) |
| Yellow .. Synchronized with marginal signal quality on CUST loop (< 2 dB margin above 10Ð7 BER) |
| Red ........ Synchronized with poor signal quality on CUST loop (>10Ð7 BER) |
LBK | This LED indicates the status of a loopback detected at the FT1 Repeater. |
| Off ........ No loopback detected at the FT1 Repeater. |
| Yellow .. Loopback detected toward NET. |
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2 | Section |