User Guide Modem 3460

3460 Fast’R
3-20
Managing Remote Modems in an AccessWay Enclosure
Managing remote modems in an AccessWay enclosure requires the
following setup and operation.
Pass Through Parameter (AT
*
NP)
Pass Through options affect only dial connections. Pass Through
options determine:
• How and whether a local modem passes network management
commands to a remote modem
• How and whether a remote master modem passes network
management commands to other modems connected to it by:
— Cables between their NM IN and NM OUT ports
— A shared backplane in an AccessWay enclosure
The Pass Through parameter uses the in-band secondary channel to pass
network-management commands. Secondary-channel transmission is
not disruptive of main channel data.
Managing Remote Modems
Step Stage
1.
Ensure that a modem card is installed in Slot 9, position B
(Figure 1-11). It is known as the master, and it transfers network-
management commands to and from other modems in its enclosure
through the enclosure backplane. Note: a master cannot transfer
commands to and from modems in other local enclosures.
2.
Make a leased-line or dial-line connection from a local modem to a
remote master modem.
3.
Ensure that the secondary channel is enabled (AT*NE1).
4.
Set the remote master modem’s Pass Through (AT*NP) parameter
to the appropriate option (NP options are described below).
5.
Issue NM commands to the other Accessway modems.