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VQE1

E1 over RF/Ethernet Multiplexer

V 1.3

User’s Manual

IP-NET, LLC

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Summary of Contents for VQE1

Page 1: ...contents 1 VQE1 E1 over RF Ethernet Multiplexer V 1 3 User s Manual IP NET LLC...

Page 2: ...contents 2 VQE1 E1 over RF Ethernet Multiplexer User s Manual IP NET LLC 2008 2...

Page 3: ...acies that may appear in the document Copyright 2008 by IP NET LLC All rights reserved No part of this publication may be reproduced or distributed in any form or by any means without prior written pe...

Page 4: ...ports 7 2 4 5 Power 7 3 INSTALLATION 7 3 1 MECHANICAL 7 3 2 ELECTRICAL 8 3 2 1 Power connection 8 3 2 2 E1 connections 8 3 2 3 DOCSIS or Ethernet connection 9 4 OPERATION 10 4 1 LED DEFINITION 10 4 2...

Page 5: ...nts 5 6 3 CONFIGURATION 16 7 SPECIFICATION 21 7 1 CAPACITY 21 7 2 DOCSIS RF INTERFACE 21 7 3 E1 INTERFACE 21 7 4 10 100BASE T PORT 21 7 5 POWER 21 7 6 OPERATING CONDITION 21 7 7 DIMENSIONS 21 7 8 WEIG...

Page 6: ...o be carried over unified networks is growing rapidly Techniques to integrate data Packets over SONET SDH into TDM networks have been around for many years But for voice over packet based data network...

Page 7: ...missions over DOCSIS or Ethernet networks the VQE1s can also be configured to work with wireless bridges One common application of VQE1 is to set up point to point wireless E1 links using low cost wir...

Page 8: ...not only conveys data stream content correctly from the source to the destination but also passes timing Packet networks do not provide such built in timing transparency mechanism as TDM networks do V...

Page 9: ...on takes several minutes to stabilize During that period clock drift may exceed the limit errors and slips may occur Various timing schemes are enlisted in Table 1 4 1 for applications depicted in Fig...

Page 10: ...ose packets containing E1 data In the reverse direction packets from the RF MODEM or the uplink ports are sorted at the switch unit All but E1 packets are passed to the local data ports The packets co...

Page 11: ...eight red LEDs are provided for alarm indication 4 for the local and remote E1 ports and 4 for packet alarms In the FAR END UP Group Four LEDs indicate the status of far end E1 uplink These LEDs are a...

Page 12: ...e four RJ45 Ethernet ports on the rear panel 2 for uplink connection to the DOCSIS packet network and 2 local data ports for local computers to access the uplink Uplink ports support 1 1 backup The We...

Page 13: ...nt is required It is recommended to turn off the power switch before connecting or disconnecting the power On the left corner of the rear panel a screw is provided for connecting the chassis to the pr...

Page 14: ...ctor to two BNC F sockets conversion cable for 75 E1 operations The 4 jumpers of CNM26 CNM25 CNM24 and CNM20 in the main board of the VQE1 board are jumpered 2 3 This cable is optional 3 2 3 DOCSIS or...

Page 15: ...bandwidth this will affect packets for the working E1 Various operational parameters can be set or modified through Web manager It is often helpful to use an E1 tester to check the quality of the E1...

Page 16: ...ndicator for 4 E1 ports respectively Local RA is off Remote RA is on Blink AIS PKL On Ethernet packet loss 1 4 Off Normal R packet loss indicator Blink E1 Packet Loss FAR END UP Far end UP packet comm...

Page 17: ...z The downstream equipment such as telephone exchange or PCM terminal is powered off z The E1 cable connection is loose or broken E1 LOS LED blinks when respective input E1 signal is AIS i e the conte...

Page 18: ...k has enough bandwidth 5 5 Downstream reporting slips Check if the downstream equipment has correct clock mode At least one of them must be clock master Set the VQE1 on master side to loop back timing...

Page 19: ...T LLC VQE1 User Manual V1 3 14 Fig 6 1 1 Status Menu Click on the E1 Status option will bring the E1 Status Information window showing LOS AIS and loop back status Fig 5 1 2 Fig 6 1 2 E1 Status Inform...

Page 20: ...and RLop Tx Rx is depicted in Fig 6 2 1 Four E1 ports can set separately by click icon Fig 6 2 1 Loop back definition Clicking on E1 Loopback option will bring the window shown as fig 6 2 2 E1 settin...

Page 21: ...16 6 3 Configuration This section includes Network Management E1 Management Change Password Default Parameter and Reboot All the settings and parameters will be valid after reboot Fig 6 3 1 Network Ma...

Page 22: ...ns are for four E1 Default E1 Encapsulation Level 1 5 E1 data size N 1 5 corresponding to 256 Nbyte E1 192 Nbyte T1 The bigger the packet is the more data is encapsulated in each packet and the lower...

Page 23: ...link line When the uplink is higher than actual E1 rate the difference value is Ethernet access rate When the uplink is lower than actual E1 rate the Ethernet rate is 0 For example the transmission li...

Page 24: ...IP NET LLC VQE1 User Manual V1 3 19 Click in on the Change Password option will bring the widows as follows Fig 6 3 3 Change Password Fig 6 3 4 Default parameter recovery...

Page 25: ...IP NET LLC VQE1 User Manual V1 3 20 Fig 6 3 5 Restart operation Clicking on confirm will make all the parameters valid...

Page 26: ...cables or 75 for coax The RJ45 E1 120 are default for all ports End to end delay minimum delay setting 5ms Output frequency offset adaptive timing stabilized 5 ppm Output jitter adaptive timing 0 1UI...

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