ADC Reliable دليل المستخدم

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®
HiGain HDSL
Fast, Economical, Reliable, and Manageable T1 Deployment
Line Units Doubler Units Remote Unit
®
ADC’s HiGain HDSL systems are used by telco providers worldwide to quickly, economically, and
reliably turn up high-speed data, voice and video services. HiGain HDSL provides transport of T1
service over two unconditioned copper pairs at distances up to 12,000 ft/3.6 km on 24 AWG
(0.5 mm) or 9,000 ft/2.7 km on 26 AWG (0.4 mm) per span (up to 5).
HiGain provides extensive diagnostic

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® HiGain HDSL Fast, Economical, Reliable and Manageable T1 Deployment Features • Up to 5-span reach [60 kft/18 km on 24 AWG (0.5mm) or 45 kft/13.5 km on 26 AWG (0.4mm) see figures 1 and 2] • Lowest power consumption and heat dissipation • Low voltage (<140 VDC) powering of up to two spans (one doubler) • Safest line powering (Class A2 or Class A3) • Ultra-low system delay • BPV transparency for copper-fed DLC support • Stratum 1 clock capable • Full compatibility with the installed base of Hi

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® HiGain HDSL Fast, Economical, Reliable and Manageable T1 Deployment Specifications HDSL TraNSmiSSioN Line Code: 784 kbps 2B1Q Transmission: dual-duplex media: two non-loaded two-wire metallic cable pairs output Signal: +13.5 dBm ±0.5 dB into 135Ω maximum Provisioning Loss: 35 dB @ 196 kHz, 135Ω DSX-1 iNTerfaCe (Co SiDe) output Level: 6 Vpk-pk, pre-equalized for 0 - 655 ft of ABAM cable input Level: +1.5 to -7.5 db DSX impedance: 100Ω Line rate: 1.544 Mbps ±200 bps Line format:

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Specifications (Cont'd) USer iNTerfaCeS (remoTe SiDe) Craft Port: RS-232 (DCE) front Panel: status LEDs ProviSioNaBLe oPTioNS Equalization, SmartJack and special loopbacks, power feed mode, T1 frame format, BER alarm threshold, loopback timeout, alarm disable, DSX-1 line code, AIS on 1LP, AIS on SmartJack NREM, DS0 blocking, RLOS alarm enable, alarm pattern, BPV Transparency LiNe PoWeriNG modes: Low, auto, high, disable Line voltage: ≤140 VDC or ±112 VDC PoWer