Cisco Cisco IOS Software Release 12.4(9)T
Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules
Restrictions for Cisco Digital Modem PVDM2s
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Cisco IOS Release 12.4(9)T, 12.4(11)XW, and 12.4(20)T
PVDM2 Installation
Install the digital modem PVDM2s in the PVDM chassis slots on your router’s motherboard.
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To install PVDM2s in Cisco 2800 series routers, see
Installing and Upgrading Internal Modules in
Cisco 2800 Series Routers.
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To install PVDM2s in Cisco 3800 series routers, see
Installing and Upgrading Internal Modules in
Cisco 3800 Series Routers.
Basic Information for Configurations
Make sure that you have the following information:
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Channel-group information and time-slot mapping
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ISDN PRI/BRI configuration parameters
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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:
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Digital modem PVDM2s can be inserted only into PVDM2 slots on the motherboards of Cisco
routers. Initially, these routers are the Cisco 2800 series and Cisco 3800 series integrated services
routers named in the
routers. Initially, these routers are the Cisco 2800 series and Cisco 3800 series integrated services
routers named in the
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Initial bootup time to download CSM V12 firmware to the digital modem PVDM2s may be two to
four minutes due to architectural limitations.
four minutes due to architectural limitations.
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Digital modem PVDM2s are supported over ISDN BRI in Cisco IOS Releases 12.4(11)XW and later.
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There is no voice support.