Cisco Systems MGX 8230 manual FRSMs for T3 and E3 lines, Features

Chapter 2 Module and Service Descriptions

Frame Relay Service Modules

FRSMs for T3 and E3 lines

The FRSMs for T3 and E3 lines include the following:

•MGX-FRSM-2CT3: provides two channelized T3 interfaces for high-density n x DS0 and DS1 frame services. The FRSM-2CT3 supports up to 4000 virtual connections per card.

•MGX-FRSM-2T3E3: provides unchannelized Frame Relay service over two T3 or E3 lines. This module can also support subrate T3 or E3 for tiered DS3 on each physical port. The FRSM-2T3E3 supports up to 2000 virtual connections per card.

Features

This section describes the features specific to the T3 and E3 interfaces. See Features Common to All FRSMs, page 2-20for a description of features that apply to all FRSM modules.

T3 Interfaces

•Two DSX-3 (44.736 Mbps +/-20 ppm) interfaces with dual female 75-ohm BNC coaxial connectors per port (separate RX and TX)

•B3ZS line coding

•Pulse shape conforming to ANSI T1.102.1993

•C-bit parity and M13 line framing formats

•Scrambling and subrate (FRSM-2T3E3) support of major DSU vendors

•T3 bit error rate tester (BERT) and extended loopback pattern generation/verification

•1:1 redundancy with Y-cabling for T3 FRSM cards of the same type

•LOS, OOF, AIS, RAI, FEBE alarm detection/generation support

Note Subrate capability is not supported on Kentrox equipment.

E3 Interfaces

•Two G.703 (34.368 Mbps +/-20 ppm) interfaces with dual female 75-ohm BNC coaxial connectors per port (separate RX and TX)

•HDB3 line coding

•Pulse shape conforming to ITU G.703

•ITU G.751 line framing format

•Scrambling and subrate (FRSM-2T3E3) support of major DSU vendors

•E3 BERT and extended loopback pattern generation/verification

•1:1 redundancy with Y-cabling for T3 FRSM cards of the same type

•LOS, OOF, AIS, RAI, FEBE alarm detection/generation support

Note Subrate capability is not supported on Kentrox equipment.

	Cisco MGX 8230 Edge Concentrator Installation and Configuration
2-32	Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001