ADTRAN DE-4E specifications FT1 DP Option Selections, Faceplate Indicators, Indicators Description

FT1 DP Option Selections

Configuration strap P1, illustrated in Figure 2, selects FT1 DP settings.

P1
o
o
o
P1	-137 V
o
o
o
-190V

By selecting -190 V, the FT1 DP can power up to two FT1 repeaters and a locally-powered FNID.

The settings on the FT1 DP are encoded and transmitted to the FNID once the circuit has achieved synchronization.

Faceplate Indicators

The FT1 DP has six faceplate LEDs which indicate operational status. Table 4 defines these LEDs.

Figure 2. P1 Switch Location

		Table 4. Front Panel Indicators and Switches
Indicators	Description
DSL ........................Indicates four possible states of the quality of the DSL signal. (The signal quality has a provisionable
	threshold of	2, 4, 6, or 8 dB above a 10-7BER.)
	Off	No synchronization of FT1 DP and FNID
	Yellow	Poor signal quality (below 2 dB above 10-7BER)
	Green	Good signal quality (above 2 dB above 10-7BER)
	Blinking	An error has been detected on the loop
DS1 .........................Indicates four possible conditions:
	Green	The customer-side DS1 signal is present and synchronized
	Yellow	Yellow alarm at customer side DS1
	Off	No customer-side DS1 signal present
	Blinking	An error has been detected at FNID input
LB ...........................Indicates three possible loopback states:
	Off	No active loopbacks
	Blinking	FNID or repeater is in loopback
	On (solid)	Local (FT1 DP) loopback is active
SX ...........................Sealing current is present
ALM .......................Indicate alarm condition
	On	Alarm condition detected either locally (FT1 DP) or remotely (FNID)
	Off	No alarm condition detected
AP ...........................This LED will be On when Hardware Provisioning does not match software provisioning.
Rotary Switch .........Selects number of DS0 channels. (See subsection 1 of this practice for a description of time slot allocation.)

61245207L2-5C Section 61245207L2-5, Issue 2 5