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Cisco Systems OL-12812-01 Manual De Usuario

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Connecting Cisco Voice Network Modules to the Network
  2- and 4-Channel Voice Network Modules
2
Connecting Cisco Voice Network Modules to the Network
2- and 4-Channel Voice Network Modules
This section describes the following modules:
•
1-slot 2-channel voice network module (NM-1V) (see 
•
2-slot 4-channel voice network module (NM-2V) (see 
Figure 1
1-Slot 2-Channel Voice Network Module (NM-1V)
Figure 2
2-Slot 4-Channel Voice Network Module (NM-2V)
4-, 8-, and 48-Channel High-Density Voice Network Modules
This section describes the following modules:
•
1-slot 4-channel high-density voice network module with one digital signal processor (DSP) 
(NM-HD-1V) (see 
•
2-slot 8-channel high-density voice network module with one DSP (NM-HD-2V) (see 
•
2-slot 48-channel high-density enhanced network module with 3 DSPs, supporting up to 8 analog or 
48 digital channels (NM-HD-2VE) (see 
Caution
To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, 
connect the 2-slot 48-channel high-density enhanced network module (NM-HD-2VE) only to 
intrabuilding or nonexposed wiring or cabling. The intrabuilding cable must be shielded and the shield 
must be grounded at both ends.
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