Nortel Networks CVX 600 manual DAC-LTM/-RLTM External Clock Interface

Technical Specifications

DAC-LTM/-RLTM External Clock Interface

DAC-LTM/-RLTM External Clock Interface

The following applies to all DAC LTMs and RLTMs with an external clock port:

•The external clock cicuitry contains a standard T1/E1 LIU device with receive TIP/RING terminated at 120 ohms (incoming twisted pair).

•T1 clock rate = 1.544 MHz

•E1 clock rate = 2.048 MHz

•Port is hardwired for Bipolar Mode only.

•Port uses B8ZS/HDB3 encoding/decoding.

The external clock port meets or exceeds specifications in ANSI T1.403 and T1.408; ITU I.431, G.703, G.736, G.775 and G.823; ETSI 300-166 and 300-233; and AT&T Pub 62411.

296-1011-202 Rel. 5.0, Doc. Rev. 02.01 A-19