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Table of Contents

 

Preface   

 

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Background   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii

Contents  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii
Document Conventions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix
Contacting ATI Technical Support  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  x

Phone Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  x
Bulletin Board Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  x
Internet Mail  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  x
CompuServe Forum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  x
FTP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi
World Wide Web. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi

 

Chapter 1

Product Description   

 

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1

Overview   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
Features  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
ATI’s Solution   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
Standards Compliance   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
Virtual Circuits  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4

Permanent Virtual Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5

LAN Emulation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
Ethernet Switching  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6

Store-and-forward  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
Cut-through  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6

Bridging  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6

Bridge Address Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6

Summary of Contents for AT-TS95TR

Page 1: ...AT 4016TR AT 4016F AT TS95TR Ethernet Switch with ATM Access AT S7 AT S9 Release 2 0 Operations Manual...

Page 2: ...atsoever including but not limited to lost profits arising out of or related to this manual or the information contained herein even if Allied Telesyn International Corporation has been advised of kno...

Page 3: ...rt x Phone Numbers x Bulletin Board Services x Internet Mail x CompuServe Forum x FTP Server xi World Wide Web xi Chapter 1 Product Description 1 Overview 1 Features 2 ATI s Solution 2 Standards Compl...

Page 4: ...Configure a PVC 31 Status And Statistical Menus 36 Cell Statistics Menu 37 Virtual Circuit Information 38 MAC Address Table 40 Chapter 3 Ethernet Administration 41 Accessing Omega 41 Selecting Menu O...

Page 5: ...Server 74 TFTP 74 Appendix A TFTP 75 Background 75 TFTP To CIB Configuration Data Requirements 76 Get 77 Put 77 General System Configuration 78 ATM Configuration 81 Ethernet Configuration 82 Spanning...

Page 6: ......

Page 7: ...nous Transfer Mode ATM technology as well as the operation of Ethernet switches If you are unsure about some of the features included in this document we refer you to the reference documentation noted...

Page 8: ...hernet software Chapter 4 Software describes several methodologies for subsequent software support Document Conventions The following conventions are used in presenting information in this manual Comm...

Page 9: ...e only available to Principal Members of the ATM Forum although published Forum specifications are available for purchase Call the ATM Forum at 415 578 6860 fax server at 415 525 0182 or send e mail t...

Page 10: ...mber is 206 481 3790 For telephone numbers outside of the United States and Canada contact your reseller or regional ATI office Bulletin Board Services A bulletin board is available The number is 206...

Page 11: ...oducts The server can be accessed through your Internet connection as follows note use lower case letters World Wide Web You can access Allied Telesyn at our new Web Site using the following http www...

Page 12: ......

Page 13: ...0 supports Ethernet and ATM communication over Permanent Virtual Circuits PVCs Your switch also provides an Emulated LAN ELAN capability by either port or MAC address which in turn allows you to group...

Page 14: ...as administration statistics status and security Support For Up To 2 048 Media Access Control MAC Addresses ATM Connection Management Support For Up To 128 Permanent Virtual Circuits PVCs using a sin...

Page 15: ...ent Port PCMCIA Port Ethernet Switch with ATM Access 1 LINK RECEIVE COLLISION PCMCIA RS 232 PRESENT FAIL POWER SUPPLY ALARMS 1 2 X X X X X X X X X X X X X X X MDI MDI X NETWORK LOAD 1 2 3 4 5 6 7 8 9...

Page 16: ...tual Circuits There are two types of Virtual Circuits 1 Permanent Virtual Circuits PVCs and 2 Switched Virtual Circuits SVCs A connection oriented technology such as ATM means that a call or virtual c...

Page 17: ...ELAN allows you to configure a network through software instead of rearranging physical cables ELANs are created and managed using Omega software management screens Figure 5 shows a typical ATM networ...

Page 18: ...ut through does not check for errors before forwarding a packet Bridging Your switch operates as a transparent bridge to the Ethernet ports As such it learns the source Media Access Control MAC addres...

Page 19: ...he correct port The switch learns addresses from all packets When devices are added to the network removed from it or relocated you do not have to reconfigure your switch Your switch automatically lea...

Page 20: ...Product Description 8...

Page 21: ...llowing sequence 1 Omega management software Your switch is controlled by ATI s Omega management software through a terminal a terminal emulator or a Telnet session 2 Unique information Each switch ca...

Page 22: ...switch Configuring Omega depends however upon the requirements of your particular environment Omega management enables you to access and configure your ELANs and your switch Omega s Main menu enables...

Page 23: ...Main menu you may select any of the following submenus Port status refer to the section Port Status on page 45 Frame statistics refer to the section Frame Statistics on page 63 Error statistics refer...

Page 24: ...Windows 3 Press the RETURN key several times This will ensure auto configuration of the appropriate baud rate 4 From the Main Menu open Omega s System Administration submenu by entering the letter S N...

Page 25: ...s menu can be used to enter or change the name of your switch You may enter a new name up to 20 characters in length or press RETURN to keep the existing symbolic name To delete an existing name enter...

Page 26: ...password You may enter a new password up to 32 characters in length or just press RETURN to keep the existing password if there is one The screen does not display your password as you type it a serie...

Page 27: ...timeout value is entered the activity monitor will only run until the timeout time is reached The default disables the timeout function Remember if a switch is in session there is no access until the...

Page 28: ...Getting Started 16 IP Parameters Menu From the Main menu enter the letter S to reaccess the System administration submenu Enter the letter I for IP parameters to access the following submenu...

Page 29: ...with TFTP commands to download software from your switch to other switches in your network Download password is not associated with the password used for Omega management If you change the password en...

Page 30: ...d to every other one Only units that have devices which need to communicate need to be connected Figure 6 ATM PVC Topology Ethernet Switch with ATM Access PCMCIA RS 232 POWER SUPPLY ALARMS NETWORK LOA...

Page 31: ...ss the Main menu from Omega management As previously stated Omega s Main menu enables you to access the submenus that are needed to configure your Ethernet and ATM network Select the System Administra...

Page 32: ...d Synchronous Digital Hierarchy SDH 1 framing which is more common in other countries The default is SONET Whichever option you choose should remain consistent throughout the entire network Clocking T...

Page 33: ...destination devices ATM cells are addressed to Virtual Channels VCs and Virtual Paths VPs Ensure that the VIP is set to zero in the ATM parameters option within the System Administration Menu is the o...

Page 34: ...between 32 and 1 024 VCIs between 1 and 31 have been reserved for ATM management cell purposes These are used by ATM in the cell header to direct packets to their correct destinations You can also us...

Page 35: ...E You should plan which devices should be included in an ELAN since as you may recall there is no communication between ELANs without ATM routing Emulated LAN Definitions Submenu The Emulated LAN defi...

Page 36: ...ere are 64 potential ELANs To see the next set of 16 press n RETURN To see the previous set press RETURN Enter a name up to 32 characters in length or delete the existing name by pressing the spacebar...

Page 37: ...AN as Port 17 To make ELAN assignments by port Enter po to select the Port to ELAN Configuration submenu The Emulated LAN column lists the ELAN that is presently configured to each port The Type colum...

Page 38: ...ected in this example On the ELAN configuration screen for the selected port you can change the method the switch uses to assign ELAN membership to network devices Choose either M for MAC address dete...

Page 39: ...elect the Port to ELAN Configuration submenu The Emulated LAN column lists the ELAN that is presently configured to each port The Type column contains a user defined keyword to configure the port Ther...

Page 40: ...forced to port s ELAN MAC Address to ELAN Configuration Submenu Once you have made port to ELAN membership assignments you can assign up to 128 MAC addresses to membership in an ELAN by selecting MAC...

Page 41: ...sign ELAN membership to an individual device 1 Enter M to select the MAC address to ELAN Configuration submenu 2 The final screen would look similar to the following The difference would only consist...

Page 42: ...arted 30 3 Select a row in the table by typing its number listed on the left of the screen Enter M to select MAC address and type in the MAC address for the device you wish to assign to an ELAN and pr...

Page 43: ...rst you need to define the ATM address of the AT 4016 or AT TS95TR you are configuring Next you must determine the ATM addresses of all devices which will be attached To set the address access the ATM...

Page 44: ...efinitions submenu within the LAN Emulation Menu VCI Virtual Circuit Identifier While you can use Virtual Circuit Identifiers between 1 and 1 024 VCIs between 1 and 31 have been reserved for ATM manag...

Page 45: ...istakes when you configure other device 2 Select a PVC by typing its number listed on the left of the screen The configuration screen for the selected PVC shows the options you must specify in order t...

Page 46: ...e VCI for that particular PVC NOTE While you can use Virtual Circuit Identifiers VCIs between 1 and 1 024 VCIs between 1 and 31 have been reserved for ATM management cell purposes and are not availabl...

Page 47: ...address entered here is the one for the remote system on the far end of this PVC It must be unique within this AT 4016 ELAN ID If you choose ELAN ID from the PVC Configuration Menu you can specify or...

Page 48: ...sented here The following additional menus are used to either view ELAN statistics or configure your ELAN Cell statistics This menu enables you to view ATM cell transmit and receive statistics as well...

Page 49: ...Statistics Menu The Cell Statistics menu enables you to view ATM cell transmit and receive statistics as well as Loss of Frame and Sync events Fields in this menu cannot be configured From the Main me...

Page 50: ...n on each Fields in this menu cannot be configured NOTE Both the AT S7 and AT S9 use a VCI which has been defined as LANE All From the Main menu access the Virtual Circuit Information submenu This men...

Page 51: ...Bytes The total number of bytes received by this switch from the specified VCI Transmitted AAL5 Frames The total number of AAL5 frames transmitted from this switch to the specified VCI Transmitted Fra...

Page 52: ...ress Table menu displays all of the MAC addresses discovered by management software on the network From this screen you can determine all of the MAC addresses that are available as well as the port or...

Page 53: ...inserting the optional AT S7 PCMCIA card into the PCMCIA port on the AT 4016 or by inserting the optional AT S9 Firmware Cassette into the appropriate port on the AT TS95TR Selecting Menu Options Whe...

Page 54: ...sion begins You may enter a new password up to 32 characters in length or just press RETURN to keep the existing password if there is one The screen does not display your password as you type it a ser...

Page 55: ...ptimum TCP IP internet addresses consist of user assigned numbers which identify members of the network It normally has two fields network number and host number TCP IP addresses are expressed in the...

Page 56: ...ther configured with or without an IP address They cannot be mixed A switch with an IP address will not respond to a Connect remote system query from a switch which does not have an IP address configu...

Page 57: ...anual 45 Port Status The Main menu of Omega is shown below Choose Port Status by entering the letter P The system will then display the AT 4016 screen shown below Note that the AT TS95TR screen would...

Page 58: ...t has received information that another bridge is the designated bridge for the LAN to which the port is attached Blocking indicates a port that is NOT PARTICIPATING in forwarding frames thusly preven...

Page 59: ...versed Normal indicates correct polarity Reversed indicates incorrect polarity software has detected that your wiring has been installed with reversed polarity It has also subsequently corrected it Op...

Page 60: ...ymbolic name for the port or change an existing one If selected the following screen appears You can enter a new name for the port up to 20 characters in length or press RETURN to keep the existing na...

Page 61: ...AT S7 AT S9 Operations Manual 49 System Name First choose the System Administration submenu by entering the letter S from the Main Menu...

Page 62: ...ansmitter Idle Sonet SDH INternal clocking External loop clocking Unassigned cells IDle cells Ethernet parameters Store and Forward Cut Through Collision is Indicated on Amber LED Transmit is Indicate...

Page 63: ...51 First choose the System Administration submenu by entering the letter S from the Main Menu Next enter the letter S for System name to access the following submenu This menu can be used to enter or...

Page 64: ...not with cut through Due to this software implementation there is a minimal latency difference between cut through and store and forward The preferred method is store and forward Choose the System Ad...

Page 65: ...e effect until the next management agent session i e you must select Quit from the Main Menu and then press RETURN to begin a new session When you are connected to the management agent through a virtu...

Page 66: ...nce is then entered normal editing characters are ignored Finally to signal the end of the sequence and to terminate input you must enter the same delimiter character again Obviously the control seque...

Page 67: ...AT S7 AT S9 Operations Manual 55 Under Custom Terminal Configuration the first sequence to be configured is HOME THE CURSOR This is followed by the ERASE THE ENTIRE SCREEN...

Page 68: ...figuration screen and select Data rate baud rate The screen consists of selectable baud rates If you select Automatic baud rate detection the default you will have to press RETURN twice to begin futur...

Page 69: ...loaded password Return to the System Administration submenu Enter the letter U for Update software in another system The following submenu will be displayed Next you are prompted to select a specific...

Page 70: ...can issue this request at any time without impacting your switches since only those with old software will respond Also if you have many switches they may not be upgraded with the first update request...

Page 71: ...s completed When directed to a file technical support engineers will be able to retrieve this information and subsequently use it towards the determination and resolution of failures Open the Main men...

Page 72: ...en shows the user configured switch name and selected group name Below is the group s product identifier The group s unique MAC address is displayed as a hexadecimal string this is actually the group...

Page 73: ...en the Telnet connection is established you will see the remote system s Main Menu Note that a thorough discussion of Telnet and remote connectivity was discussed in Chapter 2 and you are referred to...

Page 74: ...nd Restart the System Choose the System Administration submenu Enter the letter R for Reset and restart the system to access the following submenu This screen is used to verify changes in ATM paramete...

Page 75: ...ons A through K will display a graph for a particular statistics counter See Single Counter Graph below System Overview This option L displays the System Overview Graph Frames see below Individual Por...

Page 76: ...ounter Received Frames Filtered in this example is graphed on a port by port basis Each port s counter value is shown to the left of the graph and the graph itself provides a visual comparison of each...

Page 77: ...he system wide statistics counters are graphed Each counter value is shown to the left of the graph while the graph itself provides a visual picture of system wide network activity Individual Port Ove...

Page 78: ...t Graph Frames If you select a port number from the Individual Port Statistics the following display appears Note that Port 1 was selected This display is identical to the System Overview Graph except...

Page 79: ...ns A through P will display a graph for a particular statistics counter See Single Counter Graph above System Overview This option Q displays the System Overview Graph Errors see below Individual Port...

Page 80: ...y appears All of the system wide statistics counters are graphed Each counter value is shown to the left of the graph and the graph itself provides a visual picture of system wide network activity Ind...

Page 81: ...selected port All of the selected port s statistics counters are graphed Each counter value is shown to the left of the graph and the graph itself provides a visual picture of the port s network activ...

Page 82: ......

Page 83: ...dures 24 hour On line BBS Internet CompuServe The procedures and telephone numbers for ATI s BBS Internet and CompuServe were presented in the Preface to this document and you are therefore referred t...

Page 84: ...ernal Flash RAM To update software through the PCMCIA port 1 Insert the PCMCIA card into the PCMCIA port This port is located on the front panel of the AT 4016 and identified as such 2 Reset the unit...

Page 85: ...t the Firmware Cassette into the Firmware Cassette port This port is located on the rear panel of the AT TS95TR and identified as such 3 Restore power to the switch 4 Reset the unit with either the re...

Page 86: ...les include multiple drivers README and support files for specific operating systems A file called TECHSUPP ORT lists the Technical Support telephone numbers For example the files as shown below are t...

Page 87: ...configured parameter can be chained once the switch has a configured IP address To use TFTP you will need the following A TCP IP stack and a copy of the TFTP utility on your workstation The download...

Page 88: ...number then a value For example if you want port 7 to be designated computer room then PORT NAME 7 COMPUTER ROOM BAUD 9600 If the FIELD is multi dimensional such as PORT_NAME which has up to 16 ports...

Page 89: ...binary image of the software currently executing in that unit to the requesting host This enables you to upload the software onto the host system The host computer should then save the uploaded binar...

Page 90: ...al Baud Rate BAUD 19200 Allowable configuration data AUTO 192000 9600 4800 2400 1200 600 300 150 75 Default Value AUTO Terminal Parity PARITY NONE Allowable configuration data NONE ODD EVEN MARK SPACE...

Page 91: ...le configuration data Four numeric values separated by ranging from 0 255 Default Value 00 00 00 00 Subnet Mask SUBNET MASK XXX XXX XXX XXX Allowable configuration data Four numeric values separated b...

Page 92: ...CATION XXXXXXXX XXXXXXXX Allowable configuration data A maximum of sixty four 64 ASCII characters Default Value NULL STRING System Contact SYS CONTACT XXXXXXXX XXXXXXXX Allowable configuration data A...

Page 93: ...Value NULL STRING System Configuration Reset RESET TO SYSTEM DEFAULTS Allowable configuration data NONE When this field identifier is received the systems configuration data will be set to its default...

Page 94: ...itter Idle ATM TRANSMITTER IDLE IDLE CELLS Allowable configuration data IDLE CELLS UNASIGNED CELLS Default Value IDLE CELLS Exceptions For ATM systems only Ethernet Configuration Description FIELD IDE...

Page 95: ...ic value ranging from 0 65535 Default Value 65535 Bridge Age Time ST AGE_TIME 1 20 Bridge number value ST AGE_TIME 2 20 ST AGE TIME 64 20 Allowable configuration data A numeric value ranging from 6 40...

Page 96: ...lue DISABLED ATM Port Priority ST ATM PORT PRIORITY 1 128 Bridge number value ST TM PORT PRIORITY 2 128 ST ATM PORT PRIORITY 64 128 Allowable configuration data A numeric value ranging from 0 255 Defa...

Page 97: ...iguration data A numeric value ranging from 1 65535 Default Value 100 Spanning Tree Port Priority ST PORT PRIORITY 1 255 Port number Value ST PORT PRIORITY 2 255 ST PORT PRIORITY 16 255 Allowable conf...

Page 98: ...ystems and ATS6 only Port to ELAN Configuration PORT ELAN ID 1 1 Port number Elan number PORT ELAN ID 2 2 PORT ELAN ID 16 1 Allowable configuration data A port number 1 16 followed by an ELAN VLAN num...

Page 99: ...8 101 Allowable configuration data A number from 1 1023 Default Value 0 Exceptions For PVC systems only PVC ATM Address PVC ATM ADDRESS 1 XX XXX PVC Number Value PVC ATM ADDRESS 2 XX XXX PVC ATM ADDRE...

Page 100: ......

Page 101: ...rate of data throughput on the medium in bits per second Ethernet specifies 10 million bits per second BIT TIME The duration of one bit symbol 1 BR Ethernet specifies a bit time of 100 ns BROADCAST AN...

Page 102: ...a 10BASE T signal wire tester HUB REPEATER A hub is a central signal distributor It is used in a wiring topology consisting of several point to point segments originating from a central point The ter...

Page 103: ...MAU TO MAU HUB TO HUB WIRING 10BASE T MAU to MAU or hub to hub wiring generally requires a crossover cable located somewhere along the UTP cable run This may commonly occur at the punch down block or...

Page 104: ...gation delay maxima for computing propagation budgets when designing a LAN Cable length plays a major role in propagation delay for example a 50 meter 164 foot AUI cable has a maximum allowable propag...

Page 105: ...ical layer definitions for data transmission across fiber based high speed links Two options are available for the Fiber Optic ATM interface Synchronous Optical Network SONET STS 3c type framing which...

Page 106: ...ls in two or more sequential physical circuits can be concatenated to create an end to end connection called a VCC A VCC is a specific instance of a SVC or PVC A VCC may traverse one end to end VPC or...

Page 107: ..._____________ Conditions List the steps that led up to the problem ___________________________ ____________________________________ ____________________________________ _______________________________...

Page 108: ......

Page 109: ...Quick Primer _______ Reading the LEDs ______ Cabling _______ Telnet Communication ______ Software Downloading _______ I found the following the most valuable ______________________________ ___________...

Page 110: ......

Page 111: ...4 717 0290 Fax 404 717 0806 Salt Lake City UT Tel 801 350 9130 Fax 801 350 9051 Vienna VA Tel 703 506 0196 Fax 703 506 1986 Chicago IL Tel 708 406 8431 Fax 708 406 8462 Austin TX Tel 512 502 3087 Fax...

Page 112: ......

Page 113: ...ugh switching 52 Cyclic Redundancy Code 90 D Data Communication Equipment 90 Data Terminal Equipment 90 DCE 90 DTE 90 E Electronic x Electronic mail x error statistics menu individual port overview 67...

Page 114: ...onfiguration enable partitioning 47 port status 46 port status menu link 46 polarity 47 status 46 propagation delay 92 punch down block 92 PVC 92 R repeater 92 S SDH 92 Signal Quality Error 92 Simple...

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