Specifications

Interface Protocols
Operating Characteristics
August 08, 2000 68P81095E55-E 3-27
Mobile Data Gateway
The MDG is an enterprise switching router. Ports are provided allow for T1
attachments to the MPS/DAP and for the attachment of transport facilities of other
carriers to the Internet (Figure 3-20).
Figure 3-20 MDG Pathways
Base Site Controller
The BSCs have interfaces to the iDEN RF environment and the telephone
interconnect environment. This requires different traffic, signaling and maintenance
paths. They are:
• SS7 signaling between the BSCs and the MSC
• PCM traffic pathways between the BSCs and the MSC
• VSELP/RLP traffic pathways between the BSCs and the EBTSs
• Mobis signaling pathways between the BSC and the EBTSs
• Operations and Maintenance pathways (BSC-OMC-R and EBTS-OMC-R)
MPS
(packet routing )
DAC
To Transport
facilities
MDG
(Internet Route
& Switch)
DAP
(Services &
Authentication)
circuit
breakers
T. N. French
T1
Frame Relay
T1
Internet
ATM.
Frame Relay
FDDI,
µ wave
fiber...
IP
IP