TIA/EIA-732-1025:2001

$37.70

Cellular Digital Packet Data (CDPD) System Specification CS CDPD Modem Bank Management Protocol

Published By	Publication Date	Number of Pages
TIA	2001	62

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Description

In many implementations of CS CDPD, a chief component is a modem
bank functioning as a data link layer relay between a CM-ES and a
Circuit Switched Mobile Data Intermediate System (CMD-IS). This
Part specifies a set of protocols and procedures designed to enable
a modem bank to interoperate with a CMD-IS in a CS CDPD
environment.

Note—The CS-MB to CMD-IS interface is within a single
service provider and therefore is not part of the I interface.
Service providers may choose to implement this interface in various
manners, and optionally may use the TCP/IP based protocol specified
in the following parts.

The interface between the modem bank and the CMD-IS utilizes
TCP/IP technology across either a LAN or WAN environment. The modem
bank operates as a data link layer relay between the CM-ES and the
CMD-IS.

Once a connection is established between the CM-ES and the
CMD-IS via the modem bank, data can flow between the CM-ES and the
CMDIS. A physical view of such a CS CDPD environment can be seen in
Figure 100-1.

Additional information