The Cisco® MGX® 8800 Series 16-Port T1/E1 Multiprotocol Service Module (MPSM) is a 16-port T1 or E1, single-height service module for use in the Cisco MGX 8800 Series of multiservice switches. The MPSM delivers connectivity from DS0 to T1/E1 speeds and provides Any Service, Any Port (ASAP) capability.
Figure 1. Cisco MGX 8800 Series 16-Port T1/E1 MPSM (far left) with associated back cards: Cisco MGX 16-Port T1/E1 Backcard with RBBN Connector, Cisco MGX 16-Port T1/E1 Redundancy Backcard, and Cisco MGX 16-Port E1 Backcard with MCC Connector

KEY FEATURES
• ASAP functionality reduces operation and deployment costs because one MPSM card can act as both a Frame Relay and an ATM service module
• Built-in BERT testing
• IMA 1.0 and IMA 1.1 along with IMA Restart Capability
• Support for multiple ATM frame sizes from 32 to 256 bytes
• ITC and CTC clocking modes
• Support for FRF 8.1 Frame Relay/ATM service interworking
• Support for 1:N redundancy
• Support for Multilink Point-to-Point Protocol (MLPPP) and PPP multiplexing (PPPMUX)
Table 1. Product Part Numbers for Ordering
USER DOCUMENTATION
TECHNICAL SPECIFICATIONS
Physical-Layer Interface
T1/E1
Table 2. Cisco 8800 Series 16-Port T1/E1 Multiprotocol Service Module
ATM Layer
• Configurable for IMA trunk or User-Network Interface (UNI) application
• Conformant to ATM Forum UNI 3.0 and 3.1 as well as ITU-T I.361 and I.432 specifications
• Supports up to 16 classes of service (CoSs) and includes all ATM Forum traffic type services: available bit rate (ABR), UBR, variable bit rate non-round-trip (VBR-nrt), VBR-rt, [EXPAND] CBR; ABR supported for EFCI, RM marking, and ER stamping; support for IP quality of service (QoS)
• ABR with virtual source/virtual destination (VS/VD)
• Early packet discard (EPD) and partial packet discard (PPD)
• Support for Weighted Random Early Detection (WRED)
• Per-virtual circuit (VC) queuing for traffic scheduling
• Per-VC traffic shaping on egress
• Per-VC policing
• 32 virtual interfaces on egress
• Support for virtual path termination
• Support for ILMI 4.0
• Complies with standard usage parameter control (UPC) per ATM Forum UNI 3.x, TM 4.0, and ITU-T I.371
• Support for virtual circuit connections (VCCs) and virtual path connections (VPCs)
• Virtual path identifier (VPI) and virtual circuit identifier (VCI) range for VCCs and VPCs per UNI 3.1
• Support for VC merge for egress and multipoint connections
• Usage policing supported on all interfaces
Frame Relay
• Supports ITU-T Q.933 Annex A, ANSI T1.617 Annex D, and LMI local management for semipermanent virtual circuits (both UNI and Network-to-Network Interface [NNI] portions); enhanced Local Management Interface (LMI) provides autoconfiguration of traffic management parameters for attached Cisco routers
• Frame Relay-to-ATM network interworking (FRF.5) and Frame Relay-to-ATM service interworking (FRF.8 and FRF.8.1), both transparent and translation modes, configured per PVC
• Standards-based committed information rate (CIR) policing and DE tagging/discarding
• End-to-end ForeSight rate-based flow-control option to improve trunk utilization and user goodput
• Capability to extend ForeSight closed-loop congestion management between two Cisco networks across Frame Relay-UNI or Frame Relay-NNI using ANSI T1.618 consolidated link-layer management (CLLM) messages
• Cisco IOS® Software enhancements to Frame Relay-to-ATM service interworking to allow interworking for a wider range of protocols
• Each logical port independently configurable as Frame Relay UNI or Frame Relay NNI
• Meets ANSI T1.618, using 2-octet headers
ATM FUNI
• ATM Forum FUNI mode 1A supported
• Interpreted CCITT-16 CRC at end of the frame (frame discard if in error)
• ATM Adaptation Layer 5 (AAL5) mapping of user payload to ATM
• Supports 16 VPI values (15 plus the zero VPI); supports VPCs for all nonzero VPI values (up to 15 VPCs)
• Supports 64 VCI values
• Supports operation, administration, and maintenance (OAM) frame/cell flows
• Standards-based usage parameter control
• End-to-end ForeSight rate-based flow-control option (license option)
Reliability
• Greater than 100,000 hours mean time before failure (MTBF)
Physical Specifications
• Dimensions: (H x D) 7.25 x 15.83 in.
Electrical Specifications
• Input power required: (48 VDC)
• Power consumption: 36W
Electrical and Safety Standards Compliance
• EMI/ESD compliance
– FCC Part 15
– Bellcore GR1089-CORE
– IEC 801-2
– EN55022
• Safety compliance
– EN 60950
– UL 1950
• Bellcore NEBS: Level 3 compliant
• Optical safety: IEC 825-1 (Class 1)