Cisco Systems MGX 8230 manual FRSM-2T3E3 Specifications, FRSM-2CT3 Framer, FRSM-2CT3 Line Alarms

Appendix A Technical Specifications

FRSM-2T3E3 Specifications

FRSM-2CT3 Framer

The FRSM-2CT3 line framer:

•Supports M13 or C-bit parity format.

•Performs required inversion of second and fourth multiplexed DS1 streams per ANSI T1.107.

•Generates loop-up code to the far-end device to loop back any of the DS1s or entire DS3 signal stream by way of the FEAC channel.

•Automatically detects the incoming loop-up codes from the far-end device as well as loop back any of the DS1s or entire DS3 signal stream back to the far-end device. The loopback occurs at the M13 framer chip.

FRSM-2CT3 Line Alarms

For line alarms, the FRSM-2CT3 supports:

•Detection and generation of Remote Alarm Indicator (RAI) signal (also known as FERF and Yellow signal)

•Detection and generation of Alarm Indication Signal (AIS)

•Detection of Out of Frame (OOF) condition

•Detection of Loss of Frame (LOS) condition

•Automatic generation of Far End Block Error (FEBE)

FRSM-2T3E3 Specifications

This section provides details for the FRSM-2T3E3. Where appropriate, it has separate sections for T3 and E3 technologies. Topics consist of the following:

•Transport technology standards with which the card complies (Table A-11)

•General physical attributes of the card, such as LEDs on the faceplate (Table A-12)

•Line and framer characteristics for T3 operation (Table A-13and “T3 Framer Level”)

•Line and framer characteristics for E3 operation (Table A-14and “E3 Framer Level”)

•Line alarms (“FRSM-2T3E3 Line Alarms”)

Table A-11 Frame Relay Interface Standards

Interface	Standard
Frame Relay Interface	ANSI T1.618, 2-octet header
ATM Layer	CCITT I.361 and ATM UNI v3.1
AAL Layer	AAL5 ITU-T I.363
FR-Cell Interworking	Per ITU-T I.555 and I.36x.1, as summarized in ATM-to-Frame Relay
	Interoperability Implementation Agreement v 1.0

	Cisco MGX 8230 Edge Concentrator Installation and Configuration
A-10	Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001