ADTRAN DE-4E Installation And Maintenance Manual

Contents

ADTRAN DE-4E Installation And Maintenance Manual Manual pdf 5 page image

5Section 61245207L2-5, Issue 261245207L2-5CFT1 DP Option SelectionsConfiguration strap P1, illustrated in Figure 2, selectsFT1 DP settings.By selecting -190 V, the FT1 DP can power up to twoFT1 repeaters and a locally-powered FNID.The settings on the FT1 DP are encoded andtransmitted to the FNID once the circuit has achievedsynchronization.Faceplate IndicatorsThe FT1 DP has six faceplate LEDs which indicateoperational status. Table 4 defines these LEDs.Table 4. Front Panel Indicators and SwitchesDescriptionIndicates four possible states of the quality of the DSL signal. (The signal quality has a provisionablethreshold of 2, 4, 6, or 8 dB above a 10 -7 BER.)Off ......................... No synchronization of FT1 DP and FNIDYellow ................... Poor signal quality (below 2 dB above 10 -7 BER)Green .................... Good signal quality (above 2 dB above 10 -7 BER)Blinking ................ An error has been detected on the loopIndicates four possible conditions:Green .................... The customer-side DS1 signal is present and synchronizedYellow ................... Yellow alarm at customer side DS1Off ......................... No customer-side DS1 signal presentBlinking ................ An error has been detected at FNID inputIndicates three possible loopback states:Off ......................... No active loopbacksBlinking ................ FNID or repeater is in loopbackOn (solid) ............. Local (FT1 DP) loopback is activeSealing current is presentIndicate alarm conditionOn ......................... Alarm condition detected either locally (FT1 DP) or remotely (FNID)Off ......................... No alarm condition detectedThis LED will be On when Hardware Provisioning does not match software provisioning.Selects number of DS0 channels. (See subsection 1 of this practice for a description of time slot allocation.)IndicatorsDSL ........................DS1 .........................LB ...........................SX ...........................ALM .......................AP ...........................Rotary Switch .........Figure 2. P1 Switch LocationP1oooP1ooo-137 V-190 V