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Cisco PVDM2-12DM, PVDM2-24DM, and
PVDM2-36DM Digital Modem Packet Voice Data
Modules

First Published: June 19, 2006
Last Updated: July 11, 2008

The Cisco digital modem packet voice data modules (Cisco PVDMs), type 2 (Cisco PVDM2s), are
high-density PVDMs containing 12, 24, or 36 digital modems. These modems provide direct digital
connection to Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) channels, to
Basic Rate Interface (BRI) channels, and to channel associated signaling (CAS) digital trunk lines. The
PVDM2s are installed in Cisco 2800 series and Cisco 3800 series integrated services routers.

Finding Feature Information in This Module

Your Cisco IOS software release may not support all of the features documented in this module. To reach
links to specific feature documentation in this module and to see a list of the releases in which each feature is
supported, use the

“Feature Information for Digital Modem PVDM2s” section on page 47

.

Finding Support Information for Platforms and Cisco IOS Software Images

Use Cisco Feature Navigator to find information about platform support and Cisco IOS and software image
support. To access Cisco Feature Navigator, go to

<http://www.cisco.com/go/cfn>

. An account on Cisco.com

is not required.

Contents

•

Prerequisites for Cisco Digital Modem PVDM2s, page 2

•

Restrictions for Cisco Digital Modem PVDM2s, page 3

•

Information About Cisco Digital Modem PVDM2s, page 4

•

How to Configure Digital Modem PVDM2s, page 4

•

Configuration Examples for Digital Modem PVDM2s, page 22

•

Additional References, page 25

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Содержание PVDM2 24DM - Digital Modem Module

Страница 1: ...s routers Finding Feature Information in This Module Your Cisco IOS software release may not support all of the features documented in this module To reach links to specific feature documentation in this module and to see a list of the releases in which each feature is supported use the Feature Information for Digital Modem PVDM2s section on page 47 Finding Support Information for Platforms and Ci...

Страница 2: ...nformation on how to configure the LAN interfaces on your router see the Configuring Fast Ethernet and Gigabit Ethernet Interfaces section of Basic Software Configuration Using the Cisco IOS Command Line Interface WAN connections are provided through Cisco network modules and interface cards The digital modem PVDM2s are supported with the following Network modules supported in Cisco IOS Releases 1...

Страница 3: ...u have the following information Channel group information and time slot mapping ISDN PRI BRI configuration parameters T1 or E1 information such as line code and framing type Restrictions for Cisco Digital Modem PVDM2s The following restrictions apply to the Cisco digital modem PVDM2s Digital modem PVDM2s can be inserted only into PVDM2 slots on the motherboards of Cisco routers Initially these ro...

Страница 4: ...d in the PVDM 0 slot of a Cisco 2811 router The 12 modems on the module are assigned line numbers 322 to 333 A PVDM2 24DM module is installed in the PVDM 1 slot of a Cisco 3825 router The 24 modems on the module are assigned line numbers 386 to 409 A PVDM2 36DM module is installed in the PVDM3 slot of a Cisco 3845 router The 36 modems on the module are assigned line numbers 642 to 677 Mixing Digit...

Страница 5: ... optional Loading Modem Firmware page 13 optional Configuring the Loopback Interface The loopback 0 interface is the interface that dial in users access when dialing in to the network Usually all dial in users are assigned to a single IP subnet This subnet can be identified with the loopback 0 interface a logical interface whose network number can be borrowed by each asynchronous dial in interface...

Страница 6: ... following tasks configure modem lines for dial in and dial out Configuring Modems for Dial In page 6 required Configuring Modems for Dial Out page 7 required Configuring Modems for Dial In Beginning in global configuration mode follow these steps to configure modem lines for dial in SUMMARY STEPS 1 line start range end range 2 modem inout 3 transport input all Command or Action Purpose Step 1 mod...

Страница 7: ...tart range end range Example Router config line 334 345 Selects the modem lines for dial in and switch to the line configuration mode Step 2 modem inout Example Router config line modem inout Configures the line for both incoming and outgoing calls Step 3 transport input all Example Router config line transport input all Selects the protocol used to connect to the router all selects all protocols ...

Страница 8: ...igured through it Group asynchronous interfaces can speed configuration time and help you maintain interface configuration consistency Beginning in global configuration mode follow these steps to configure a group asynchronous interface Step 3 transport input telnet Example Router config line transport input telnet Configures the router to accept inbound Telnet connections Step 4 modem inout Examp...

Страница 9: ...Enables IP processing on the loopback interface without assigning an explicit IP address to the interface Step 3 encapsulation ppp Example Router config if encapsulation ppp Sets the Point to Point Protocol PPP as the encapsulation method used by this interface Step 4 dialer in band Example Router config if dialer in band Specifies that dial on demand routing DDR be supported Step 5 async mode int...

Страница 10: ...e 9 no cdp enable DETAILED STEPS Step 7 no cdp enable Example Router config if no cdp enable Disables Cisco Discovery Protocol on this interface Step 8 group range start range end range Example Router config if group range 0 322 0 345 Associates one or more interfaces to the group interface so that all associated interfaces can be configured through the group interface Command or Action Purpose Co...

Страница 11: ...n the default pool will then be released If there are no available modems in the default pool the call will not go through Whenever signaling type e m fgb is specified in the ds0 group command it is necessary to configure dtmf dnis as part of the signaling type Router config ds0 group 1 timeslots 1 24 type e m fgb dtmf dnis Step 4 encapsulation ppp Example Router config if encapsulation ppp Sets t...

Страница 12: ... that a modem must experience before the recovery process is performed The modem recovery action command defines the action taken on the failed modem The recovery action will either be disable where the IOS will mark the modem bad or will be none where nothing will happen to the modem and the threshold counter will be reset A modem failure is defined as any time that the CSM assigns a call to a mo...

Страница 13: ...r minutes for the new version to appear SUMMARY STEPS 1 configure terminal 2 modem firmware slot slot number location ifsfilename 3 exit Command or Action Purpose Step 1 modem recovery threshold failed calls Example Router config modem recovery threshold 10 Specifies the number of consecutive failure that must occur on a modem before modem recovery action takes place The range is 0 to 1000 The def...

Страница 14: ...ag Result 0x0000007F Firmware V3 07 Router Download the firmware as follows Router configure terminal Enter configuration commands one per line End with CNTL Z Router config modem firmware slot 0 location flash V3_08 axf This command will disconnect any active calls Proceed with firmware upgrade confirm Modem Slot 0 Started firmware download Modem 0 386 0 409 Modem Slot 0 Completed firmware downlo...

Страница 15: ...T1 network modules for PRI operation or CAS operation perform the following procedures Configuring the T1 E1 Network Module page 15 required Configuring ISDN Digital Modem Calls PRI page 16 optional Configuring Digital Trunk Calls CAS page 18 optional Configuring the T1 E1 Network Module The first step in configuring a digital modem interface is to configure the channelized T1 or E1 network module...

Страница 16: ...s on a specified network module to use the network clock for timing Step 3 network clock select priority t1 e1 slot port Example Router config if network clock select 1 t1 1 0 Specifies the clocking configuration for the selected port Step 4 controller t1 e1 slot port Example Router config if controller t1 1 0 Allows configuration of the selected T1 or E1 controller Step 5 framing sf esf crc4 no c...

Страница 17: ...alls The PRI network modules and interface cards for your router can have either one or two ports therefore you might have multiple D channels to configure To configure the ISDN D channel serial interface for E1 or T1 controllers perform the following tasks beginning in global configuration mode SUMMARY STEPS 1 interface Serial slot port channel 2 no ip address 3 encapsulation ppp 4 isdn incoming ...

Страница 18: ...he first PRI line and switch to the interface configuration mode For E1 controllers channel 15 For T1 controllers channel 23 Step 2 no ip address Example Router config if no ip address Disables IP processing on this interface Step 3 encapsulation ppp Example Router config if encapsulation ppp Sets the Point to Point Protocol PPP as the encapsulation method used by this interface Step 4 isdn incomi...

Страница 19: ...lots list type type Example Router config ds0 group 1 timeslots 1 24 type e m immediate start Specifies the DS0 time slots that make up a port list specifies the time slots that are included in the DS0 group For T1 ports time slots range from 1 to 24 For E1 ports time slots range from 1 to 31 Refer to Cisco IOS Release 12 4 Master Commands List for a complete listing of supported signaling methods...

Страница 20: ...ns specifies super frame sf or extended super frame esf as the frame type for data lines Default is esf In E1 configurations specifies cyclic redundancy check 4 crc4 or no crc4 as the frame type for data lines Default is crc4 Step 4 linecode ami b8zs or linecode ami hdb3 Example Router config controller linecode b8zs In T1 configurations specifies alternate mark inversion AMI or b8zs as the lineco...

Страница 21: ...obal configuration mode Step 2 isdn switch type basic net3 basic qsig Example router config isdn switch type basic net3 Specifies the ISDN switch type Step 3 interface bri slot port Example router config interface bri 0 0 Changes to interface configuration mode for a given port in a designated slot Step 4 no ip address Example router config if no ip address Specifies that there is no IP address fo...

Страница 22: ... PVDM slot 0 of a Cisco 2851 router version 12 4 service timestamps debug datetime msec service timestamps log datetime msec no service password encryption card type t1 1 no aaa new model resource policy network clock participate slot 1 network clock select 1 T1 1 0 modem country v12 t1 default ip cef no ip domain lookup controller T1 1 0 framing esf linecode b8zs ds0 group 1 timeslots 1 24 type e...

Страница 23: ...rmit control plane line con 0 exec timeout 0 0 line aux 0 exec timeout 0 0 line 0 322 0 357 modem InOut transport input all line vty 0 4 password login scheduler allocate 20000 1000 end Configuring a T1 Controller for ISDN Digital Modem Calls Example The following example shows the T1 PRI ISDN configuration for a PVDM2 36DM module in PVDM slot 0 of a Cisco 2851 router version 12 4 service timestam...

Страница 24: ...auto interface Serial1 0 23 no ip address encapsulation ppp isdn switch type primary qsig isdn incoming voice modem no cdp enable interface Dialer101 ip address 10 101 0 1 255 255 0 0 encapsulation ppp dialer pool 1 dialer idle timeout 2147483 dialer string 101 dialer group 1 no cdp enable no ppp authentication interface Group Async1 no ip address encapsulation ppp load interval 30 dialer in band ...

Страница 25: ...r PVDMs in Cisco 3800 series routers Installing and Upgrading Internal Components in Cisco 3800 Series Routers Cisco IOS Command Reference Cisco IOS Master Commands List Release 12 4 Modem Pooling PRI DNIS and Modem Pooling with a PRI Line Modem Pooling CAS DNIS and Modem Pooling Using a CAS T1 Line Standard Title No new or modified standards are supported by this feature and support for existing ...

Страница 26: ...modem log pvdm2 show modem operational status pvdm2 show modem version pvdm2 RFC Title No new or modified RFCs are supported by this feature and support for existing RFCs has not been modified by this feature Description Link The Cisco Technical Support Documentation website contains thousands of pages of searchable technical content including links to products technologies solutions technical tip...

Страница 27: ...he specific modem number at the end one can enable packet debugging for all the modems available on the router debug pvdm2dm packet modem The following command enables packet debugging for all packets flowing through a particular PVDMII xxDM device debug pvdm2dm packet pvdm slot pvdm slot The following command enables debugging of packets flowing through any PVDMII xxDM device debug pvdm2dm packet...

Страница 28: ...ket Router show debugging PVDM2 DM Modem 0 322 packet debugging is on Modem 0 323 packet debugging is on Modem 0 324 packet debugging is on Modem 0 355 packet debugging is on Modem 0 356 packet debugging is on Modem 0 357 packet debugging is on Router The following example sets debugging for a particular PVDMII xxDM device Router debug pvdm2dm packet pvdm 0 0 Router show debugging PVDM2 DM PVDM2 0...

Страница 29: ...mmand modem country v12 country no modem country v12 country Syntax Description Command Default Command is disabled Command Modes Global configuration Command History Usage Guidelines The supported codes for the country argument are as follows australia austria belgium china cyprus czech republic Czech Slovak Republic denmark e1 default Default E1 a law finland france germany hong kong india irela...

Страница 30: ...ase 12 4 9 T 12 4 11 XW and 12 4 20 T malaysia netherlands new zealand norway poland portugal russia singapore south africa spain sweden switzerland t1 default Defaults T1 u law taiwan thailand turkey united kingdom usa Examples The following example sets the V12 modems for operation in Sweden modem country v12 sweden ...

Страница 31: ...t up to 70 seconds for carrier after dialing S08 2 comma adds 2 second dial delay S09 6 0 6 second Carrier detect response time S10 14 1 4 second delay for hangup after carrier loss S11 95 0 095 second DTMF Tone Duration S11 50 Escape Prompt Delay in 02s S14 138 Command echo enabled E1 Send result codes Q0 Result codes is verbose V1 Tone T Originate S16 0 Local analog loopback disabled Local digit...

Страница 32: ...sion S48 7 V 42 negotiation enabled S82 128 Break Handling Options LAPM Break Control 0x80 S82 21 S91 13 13 dBm Transmit Level in analog modulations S92 13 13 dBm Transmit Level for the fax mode S95 0 CONNECT result code indicates DTE speed Not append ARQ to CONNECT rate in error correction Disable CARRIER rate result code Disable PROTOCOL identifier result code Disable COMPRESSION type result cod...

Страница 33: ...R DCD and DSR S22 Speaker Results Options Status Not supported S23 General Bit Mapped Options Status Status of RDL DTE rate DTE parity and guard tone S24 Sleep Inactivity Timer 0 to 255 seconds Default is 0 no sleep S25 Delay to DTR 0 to 255 in 10 ms increments or full seconds for synchronous modes Default is 5 S26 RTS to CTS Delay 0 to 255 in 10 ms increments Default is 1 S27 Bit Mapped Options S...

Страница 34: ...nded Result Codes Indicates overriding of Wn command options S200 Disable K56Plus Protocol Default is 223 enables S202 CSM Bit Mapped Control Register Controls K56flex V90 Tx level and automatic CX802xx CX803xx status response S210 Symbol Rate Limit V34 symbol rate limit symmetric or asymmetric S220 Duration of Answer Tone Command is in units of 450 ms Default is 11 4950 ms S221 Duration of Billin...

Страница 35: ...ge ATS 5B 0D DF 17 00 15 31 068 CSM event ISDN_CONNECTED New State WAIT_FOR_CARRIER 00 15 31 036 CSM event CSM_EVENT_MODEM_SETUP New State WAIT_FOR_CARRIER 00 15 31 036 Ntf PCMENCODE 00 15 31 032 Ntf CMDDAT Config Acknowledge ATS Pass Pass 00 15 31 032 Ntf CMDREQ 00 15 31 012 Cmd LINECON 00 15 31 012 Ntf ANSDET 00 15 14 092 Cmd CMDDAT Statistic Data Transfer Information 00 15 14 092 CSM event MODE...

Страница 36: ... frames rcvd 12 characters transmitted 218 characters received 487 synchronous frames sent 7 synchronous frames rcvd 12 bad synchronous frames rcvd 0 reject frames sent 0 reject frames rcvd 0 total retransmissions 0 00 13 44 996 Ntf CMDREQ 00 13 44 996 Cmd CMDDAT Statistic Call Summary Information 00 13 44 992 Ntf CMDDAT Statistic Call Summary Information Disconnect reason 21 Clears previous disco...

Страница 37: ...tic Digital Impairments Ditital pad detected 0 RBS pattern 0 Rate drop due to RBS 255 V 90 minimum distance high 0 V 90 minimum distance low 0 Raw V 90 digital pad val high 255 Raw V 90 digital pad val low 255 00 14 17 392 Ntf CMDREQ 00 14 17 392 Cmd CMDDAT Statistic V 8bis proprietary flex Information 00 14 17 388 Ntf CMDDAT Statistic V 8bis proprietary flex Information Negotiation status 74 RLSD...

Страница 38: ...Initial transmit speed 16 33600 Maximum receive speed 16 33600 Maximum transmit speed 16 33600 Minimum receive speed 16 33600 Minimum transmit speed 16 33600 Max retransmit for one frame 1 Total retransmit during connect 0 Minimum EQM 17 Maximum EQM 25 Negative EQMs 0 Minimum SNR 27 31 dB Maximum SNR 27 31 dB Retrains requested locally 0 Retrains requested remotely 0 Rate renegotiation req locally...

Страница 39: ...sed Non standard V 8bis Octet 15 131 K56flex capable Last byte Non standard V 8bis Octet 16 66 flex version 0x2 Not prototype Server Not last byte Non standard V 8bis Octet 17 0 Not last byte Conexant data pump revision 0x0 Non standard V 8bis Octet 18 0 u law x law not forced Not last byte Conexant controller revision 0x0 00 13 02 776 Ntf CMDREQ 00 06 19 580 Cmd CMDDAT Statistic Data Transfer Inf...

Страница 40: ...mbol rate 5 3429 Receive symbol rate 5 3429 Transmit carrier frequency 0 1959 low Receive carrier frequency 0 1959 low Minimum AGC reading 94 Maximum AGC reading 94 Transmit level 13 Remote req tx level reduction 2 SNR 27 31 dB Transmit non linear encoding 1 On Receive non linear encoding 1 On Transmit precoding 1 On Receive precoding 1 On Transmit shaping 16 Receive shaping 16 Trellis mapping 0 1...

Страница 41: ...Octet 18 0 u law x law not forced Not last byte Conexant controller revision 0x0 00 07 25 856 Ntf CMDREQ Router Table 3 describes the major fields shown in the display Related Commands Table 3 show modem log Field Descriptions for V12 Modems Field Description CSM PVDM2 xxDM internal state machine commands Cmd Commands sent from Cisco IOS software to V12 modems Ntf Notifications sent from V12 modem...

Страница 42: ... 16 33600 transmit speed 16 33600 error correction frames sent 7 error correction frames rcvd 12 characters transmitted 218 characters received 487 synchronous frames sent 7 synchronous frames rcvd 12 bad synchronous frames rcvd 0 reject frames sent 0 reject frames rcvd 0 total retransmissions 0 Disconnect reason 21 Clears previous disconnect reason Retrain rate renegotiate reason 0 None Connectio...

Страница 43: ...eceive precoding 1 On Transmit shaping 16 Receive shaping 16 Trellis mapping 0 16 state Transmit pre emphasis index 0 Raw round trip delay 424 EQM sum low 0 EQM sum medium 0 EQM sum high 0 Ditital pad detected 0 RBS pattern 0 Rate drop due to RBS 255 V 90 minimum distance high 0 V 90 minimum distance low 0 Raw V 90 digital pad val high 255 Raw V 90 digital pad val low 255 Negotiation status 74 RLS...

Страница 44: ...us pvdm2 44 Cisco IOS Release 12 4 9 T 12 4 11 XW and 12 4 20 T Command Description show modem configuration pvdm2 Displays the current modem configuration for digital V12 modems on PVDM2 xxDM devices show modem log pvdm2 Displays the modem history event status performed on a manageable modem or group of modems ...

Страница 45: ...821 router with three PVDM2 36DMs high density pvdms holding 36 digital modems each Router show modem version Slot 0 PVDM 0 PVDMII 36DM HW Version 1 FPGA Version 3 3 NiOS 2 5 0 1 Modem 0 322 0 333 PCI Classid 0x07800001 Bootrom Rev 0x00005601 Diag Result 0x0000007F Firmware V3_09 Modem 0 334 0 345 PCI Classid 0x07800001 Bootrom Rev 0x00005601 Diag Result 0x0000007F Firmware V3_09 Modem 0 346 0 357...

Страница 46: ...cant fields shown in the displays of the show modem version command Table 4 show modem version Field Descriptions Field Description PVDM PVDM slot number where PVDM2 xxDM is present HW Version Hardware revision number of PVDM2 xxDM FPGA Version FPGA version loaded in the PVDM2 xxDM NiOS The version number of the NiOS core soft processor in PVDM2 xxDM Modem Slot and port number for the specified mo...

Страница 47: ...e Cisco IOS software release that introduced support for a given feature in a given Cisco IOS software release train Unless noted otherwise subsequent releases of that Cisco IOS software release train also support that feature Table 5 Feature Information for Digital Modem PVDM2s Feature Name Releases Feature Information PVDM2 12DM PVDM2 24DM PVDM2 36DM 12 4 9 T This feature consists of digital mod...

Страница 48: ...net Catalyst CCDA CCDP CCIE CCIP CCNA CCNP CCSP Cisco the Cisco Certified Internetwork Expert logo Cisco IOS Cisco Press Cisco Systems Cisco Systems Capital the Cisco Systems logo Cisco Unity Enterprise Solver EtherChannel EtherFast EtherSwitch Fast Step Follow Me Browsing FormShare GigaDrive HomeLink Internet Quotient IOS iPhone IP TV iQ Expertise the iQ logo iQ Net Readiness Scorecard iQuick Stu...

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