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Analog Code: FIC_TL31M_E&M Tie Trunk/ Lossless/ 4W/ Type I/ originates with battery on M
Digital Code: FIC_04DU9.DN_4-wire 1.544 Mbps (DS1) with SF/ Bipolar with eight-zero substitution
EUT STD: TIA-968-B Part 4_Part 4 COMMON REQUIREMENTS
TELE I/F: ISDN
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