Mim-4Bsv - HPE FlexNetwork MSR Series Manual

MIM-4BSV

Introduction
The 4-port ISDN BRI S/T voice interface module (MIM-4BSV) processes ISDN voice traffic. In the
upstream direction, it can be connected to user interfaces on an ISDN switch to receive and
decompress, and compress and transmit ISDN BRI digital voice traffic. In the downstream direction,
the module can be connected to TE devices to allow their voice traffic to be forwarded through a
WAN interface on the router to the Internet to implement VoIP. The interfaces on the MIM-4BSV
module are ITU-T I.430-compliant. They use pseudo-ternary coding, providing 192 Kbps rate, and
allow a maximum transmission distance of 1 km (0.6 miles) in point-to-point mode. The MIM-4BSV
provides the following features.
•
The BSV interfaces support user and network modes for connecting an ISDN network and a TE
device, respectively.
•
When a BSV interface operates in network mode, the digital voice traffic received on the BSV
interface is compressed and forwarded through the CPU on the MPU to a WAN interface. The
IP voice traffic received on a WAN interface is forwarded through the CPU on the MPU to the
MIM-4BSV. The MIM-4BSV decompresses and sends the voice traffic to the TE device.
•
When a BSV interface operates in user mode, the digital voice traffic received from the B
channels on the BSV interface is decompressed and forwarded through the CPU on the MPU to
a local FXS or FXO analog voice interface. The voice signals received on the local FXS or FXO
analog voice interface are processed by VoIP and forwarded through the CPU on the MPU to
the MIM-4BSV module. The MIM-4BSV module decompresses and sends the traffic out of the
BSV interface to the connected ISDN switch.
•
Working in conjunction with the FXS or FXO analog voice interface modules, the MIM-4BSV
provides flexibility in voice call routing.
•
The signaling on the ISDN BRI D channel is processed separately on CPU.
•
The BSV interfaces can be connected to ISDN phones to supply power to the phones.
•
The MIM-4BSV is dedicated to voice applications.
Interface specifications
Table 109 Interface specifications
Item
Connector
Number of connectors
Interface standard
Interface rate
Cable
Supported service
Interface LEDs
Figure 77 MIM-4BSV panel
Specification
RJ-45
4
ITU-T I.430, Q.921, Q.931
192 Kbps
ISDN S interface cable
Voice access over ISDN S interface cable
70