ADTRAN 203019L1, 1203019L2, 1203019L3 Specifications, Network Interface U, Customer Interface S/T

NT1 ACE User Manual

READY indicator does not illuminate.

•Problem with ISDN network: Contact telephone company.

•ISDN line not plugged into NETWORK jack: Plug ISDN line into NETWORK jack.

Unable to make or receive a call.

•TE is not compatible with ISDN network: Contact telephone company.

Specifications

Network Interface (U)

Line	2-Wire (Tip and Ring)
Operating Mode	Full-Duplex
Data Rate	160 kbps total, 144 kbps to customer
Signal Format	2B1Q
Output Amplitude	2.5 volts, zero-to-peak
Tx Source Impedance ....	As per ANSI T1.601
Rx Source Impedance....	As per ANSI T1.601
Receiver Sensitivity	As per ANSI T1.601

Customer Interface (S/T)

Line	4-Wire (Tx and Rx Pair)
Operating Mode	Full-Duplex
Data Rate	192 kbps total, 144 kbps to customer
Signal Format	Alternate Mark Inversion, 100% duty cycle
Output Amplitude	0.75 volt, zero-to-peak
Tx Source Impedance ....	As per ANSI T1.605
Rx Source Impedance....	As per ANSI T1.605
Receiver Sensitivity	As per ANSI T1.605

12 NT1 ACE User Manual 61203019L1-1