Cisco Systems MGX 8230 manual FRSM-2T3E3 T3 Line, T3 Framer Level

Appendix A Technical Specifications

FRSM-2T3E3 Specifications

Table A-12 FRSM-2T3E3 Front Card Physical Characteristics

Feature	Significance or Value
Power	–48 VDC, 60W (estimated)
Card Status Indicator LEDs	Active (Green),
	Failed (Red),
	Standby (Yellow)
Line Status Indicator LEDs	Active & Okay (Green),
	Active & Local Alarm (Red),
	Active & Remote Alarm (Yellow)
Reliability	> 85000 hours MTBF (target)
Card Size	Front card: 7.25 inches by 15.83 inches (18.42 cm by
	42.75 cm)
	Back cards: 7.25 inches by 4.125 inches (18.42 cm by
	10.48 cm)

FRSM-2T3E3 T3 Line

The T3 line characteristics appear in Table A-13.

Table A-13 T3 Line Level

Feature	Significance or Value
Number of T3 Lines	Two
Line Interface	75 ohm BNC
Connector
Line Rate	44.736 Mbps +/- 20 ppm
Line Coding	B3ZS
Transmit Timing	Normal or Loop timed
Input Jitter Tolerance	Per GR-499-CORE, ITU-T G.824
Output Jitter	0.05 UI maximum with jitter-free input clock
Output Pulse	Per ANSI T1.102

T3 Framer Level

For the framing characteristics of T3 operation, the FRSM-2T3E3:

•Supports C-bit parity and M13 DS3 format.

•Frames to a DS3 signal with a maximum average reframe time that meets the requirements set by TR-TSY-000009 and GR-499-CORE.

•Detects the alarm indication signal (AIS) in milliseconds in the presence of a 10-3bit error rate.

•When in-frame, indicates M-bit or F-bit framing errors as well as P-bit errors. In C-bit parity mode, it also indicates both C-bit parity errors and far end block errors.

	Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001		A-11