3com MSR 20 Manuel D’Utilisation
VCPM Module
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Step 3: Install the VCPM card on the mother board and fasten it with three screws.
During installation, align the two connectors under the daughter board to the
connectors on the main board to avoid damage to the connectors.
During installation, align the two connectors under the daughter board to the
connectors on the main board to avoid damage to the connectors.
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CAUTION: You should align the three fastening holes on the VCPM card to the
three fastening holes or metal standoffs on the mother board. Misplugging is
prone to impair the interface module and even damage the router.
three fastening holes or metal standoffs on the mother board. Misplugging is
prone to impair the interface module and even damage the router.
VCPM Card Application
Example
If a user wants to perform voice communication through data voice interface,
besides using data voice interface board, he can also install a VCPM card on the
main board of an MSR 30 series router or in the VCPM slot on the MSCA card on
an MSR 50 series router, with a certain number of VPM strips installed in the VPM
slot as needed.
besides using data voice interface board, he can also install a VCPM card on the
main board of an MSR 30 series router or in the VCPM slot on the MSCA card on
an MSR 50 series router, with a certain number of VPM strips installed in the VPM
slot as needed.
A router installed with RTV-SIC-1E1/T1 module
RTV-SIC-1E1/T1 module consumes VCPM and VPM resource when it is operating
normally. Therefore, with RTV-SIC-1E1/T1 installed on a router, VCPM card and
certain numbers of VPM should also be installed on the main board for MSCA
board of the router.
normally. Therefore, with RTV-SIC-1E1/T1 installed on a router, VCPM card and
certain numbers of VPM should also be installed on the main board for MSCA
board of the router.
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If there is an RTV-SIC-1E1/T1 module on the router but no VCPM or VPM card is
installed, the router may operate abnormally.
installed, the router may operate abnormally.
A router installed with no RTV-SIC-1E1/T1 module
If there is no RTV-SIC-1E1/T1 module in the system, no VCPM and VPM are
needed on a router. However, when a router is installed with voice E1/T1 module
of other types and there is data exchange between voice E1/T1 modules, the main
board of the router should be installed with VCPM card. VPM should be installed
as needed.
needed on a router. However, when a router is installed with voice E1/T1 module
of other types and there is data exchange between voice E1/T1 modules, the main
board of the router should be installed with VCPM card. VPM should be installed
as needed.