Table A. LED Indications, Description and Indications

The ADTRAN Single-Wide FT1 Repeater provides three faceplate LEDs which indicate signal quality, error conditions, and loopback status. See Table A for a description of the LED indicators.

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 Single-Wide FT1 Repeater operates at line losses up to 35.25 dB at 200Ê kHz, in both directions from the repeater and regenerates the 2B1Q signals to meet the transmitted power spectrum of Bellcore TA-NWT-0001210. For deployment guidelines, refer to subsection 5 of this practice.

The Single-Wide FT1 Repeater is housed in an environmental apparatus case.

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 Network-side loop. The NET LED will
	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 Customer-side loop. The CUST LED
	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.

Section 61245211L1-5, Issue 1

61245211L1-5A