Installation guide

A-7

Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases

OL-1165-06

Appendix A System Specifications

T3 Interface on BC-UAI-6T3 or BC-UAI-3T3

These specifications apply to the UXM-E’s six and three-port T3 back cards.

Line rate: 44.736 Mbps ± 20 ppm, asynchronous

Line code: B3ZS

Clock source mode: Internal (asynchronous)

Signal level: DSX-3

Framing formats: ANSI T1.107 C-bit parity

Alarms processed: AIS

LOS

Remote alarm indication

Loss of framing

Line errors counted: BPV

Parity bit errors

Receiver input impedance: Terminated=75 ohms

Transmission modes: Point-to-point

Connector: SMB (adapter available for BNC)

Max. line lengths: 450 ft (137 m) to DSX-3 using 75-ohm coaxial cable

Indicators: Red alarm

Yellow alarm

LOS

AIS

Idle code: Configurable

ATM mapping: PLCP/HEC

Standards: ANSI T1.102, ANSI T1.404, ITU-T G.824, T1.107

Payload scramble: On/Off

HCS masking: Yes/No

ATM cell rate per port: 96000 cps in PLCP mode, 104268 cps in HEC mode