ADTRAN FT1 DP دليل المستخدم

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HDSL Quick Installation Guide
for ADTRAN FT1 DP and FNID
PRACTICES
Three eight-position switch packs (SW1, 2, 4) and two four-position switch packs (SW3, 5) are used to configure
FT1 DP mode of operation as listed in the table below. Refer to ADTRAN Installation/Maintenance practices for more
information.
Option Settings
(arrows indicate default settings)
Switch Function Description
SW1-1 ............. Channel Select Selects between alternating and contiguous DS0 channels.
Closed .............

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FT1-DP FT1-Repeater FNID Loop 1 5 3 Loop 1 7 5 6 4 13 15 Channel Bank DS1 Backplane 55 49 Central Office Customer Premises 2B1Q 2B1Q 12 kft 24-AWG 12 kft 24-AWG 9 kft 26-AWG 9 kft 26-AWG (max.) (max.) 12 Loop Insertion Loss Data 11 Frequency (Hz) Maximum Loss (dB) INVALID HDSL CABLE LENGTHS 3,000 12.0 10 10,000 15.0 TOTAL 9 BRIDGED 50,000 25.5 2.5 TAP 2.0 100,000 30.0 8 1.5 LENGTH 1.0 150,000 32.75 (KFT) 0.5 0.0 7 200,000 35.25 6 5 These approximations are to be used as guidelines only and may