Appendix D Specifications

ELECTRICAL SPECIFICATIONS

T1/FT1 Interface

T1 Line Rate

1.544 Mbits/s +/- 75bps

Line Code

Bipolar, RZ; AMI or B8ZS

Framing

D4(SF) or ESF

FT1 Line Rate

DS0 Channelized (multiple of 64 kbps)

Transmit Timing

Network, DTE, U-BR1TE, Secondary, NI, Normal (CSU) or Internal

Input Signal

0 to -36 dB (DS-1)

Line-Build-Out

0, -7.5, -15, -22.5 dB, AUTO

Connector

RJ48C, DB 15 (male)

Test Jacks

Bantam jacks: Tx and Rx MON, Tx and Rx (to network)

61202156L2-1

TDU 120e User Manual

D-1

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ADTRAN TDU 120e user manual Appendix D Specifications, Electrical Specifications, T1/FT1 Interface