ECHO CANCELLER (8 PORT CE-EC-64) clei The 8-Port CE Echo Cancellation Module is an extension module for the 7470/7270/7670ESE 120 ohm 8-port T1/E1 CE Cards. The echo cancellation module monitors ingress and egress speech in order to compute an estimate of the undesired echo that may be present. This estimate is then used to cancel echoes which accumulate due to hybrids and other effects in the voice network. This module provides up to 63 milliseconds of tail length. This assembly contains a Telcordia CLEI (Common Language Equipment Identifier) label.

EL TRX SFP 1000BASE-T

EL TRX SFP 1000BASE-T

EL TRX SFP 1000BASE-T

EL TRX SFP FE 100BASE-T

EL TRX SFP FE 100BASE-T

EL TRX SFP FE 100BASE-T

EL TRX SFP STM-1EL

EL TRX SFP STM-1EL

ELB 2.X OPER.HDBK EN

ELB 2.X OPER.HDBK EN

ELM 5.0 OPER.HDBK CT+NM EN

Encryption software license for OS6850. This license enables support of IPsec for securing IPv6 routing protocols (RIPng / OSPFv3).

Encryption software license for OS9000. This license enables support of IPsec for securing IPv6 routing protocols (RIPng / OSPFv3)

ENHANCED SERGI

ENHANCED TRAFFIC MGMT OC3-2M IR W/CPU-2 The R4.3 Enhanced Traffic Management OC3-2M IR bundle consists of an OC3-2M IR UNI/NNI Card with CPU-2 line card(90-4905-1A) and an Enhanced Traffic Management (ETM) module (90-7695-01).

ENHANCED TRAFFIC MGMT OC3-2M IR W/CPU-2 The R5.0 Enhanced Traffic Management OC3-2M IR bundle consists of an OC3-2M IR UNI/NNI Card with CPU-2 line card(90-4905-2A) and an Enhanced Traffic Management (ETM) module (90-7695-01). This bundle can also be used with ESE Release 2.0.

ENHANCED TRAFFIC MGMT OC3-2M LR W/CPU-2 The R4.3 Enhanced Traffic Management OC3-2M LR bundle consists of an OC3-2M LR UNI/NNI Card with CPU-2 line card (90-4905-1B) and an Enhanced Traffic Management (ETM) module (90-7695-01).

ENHANCED TRAFFIC MGMT OC3-2M LR W/CPU-2 The R5.0 Enhanced Traffic Management OC3-2M LR bundle consists of an OC3-2M LR UNI/NNI Card with CPU-2 line card (90-4905-2B) and an Enhanced Traffic Management (ETM) module (90-7695-01). This bundle can also be used with ESE Release 2.0.

ENHANCED TRAFFIC MGMT OC3-2M MMF W/CPU-2 The R4.3 Enhanced Traffic Management OC3-2M MMF bundle consists of an OC3-2M MMF UNI/NNI Card with CPU-2 line card (90-4905-1C) and an Enhanced Traffic Management (ETM) module (90-7695-01).