MDS iNET 900 - Protected Network Operation through Multiple Access Points; Option 2-Using the AP as a Store-And-Forward Repeater

MDS 05-2806A01, Rev. A MDS iNET 900 User’s Guide 11
Another interference reduction technique is to cross-polarize the
repeater antennas. If one antenna is mounted in the vertical plane, and
the other in the horizontal plane, an additional 20 dB of attenuation can
be achieved. (Remember that the corresponding stations must use the
same antenna orientation when cross-polarization is used.)
Network Name The two radios that are wired together at the repeater site must have dif-
ferent network names. To set or view the network names, see “STEP 3—
CONNECT PC TO THE iNET” on Page 80 for details.
Option 2—Using the AP as a Store-and-Forward Repeater
A wireless network can be extended through the use of an alternate
arrangement using the Access Point as a repeater to re-transmit the sig-
nals of all stations in the network. The repeater is a standard MDS iNET
900 unit configured as an Access Point. (See Figure 1-8.)
Invisible place holder
Figure 1-8. Typical network with store-and-forward repeater
1.3.2 Protected Network Operation through Multiple
Access Points
Although iNET units have a very robust design and have undergone
intensive testing before being shipped, it is possible for isolated failures
to occur. Down time can be further reduced by using some, or all, of the
following configurations.
In a point-to-multipoint scenario, the Access Point services multiple
remotes. A problem in the Access Point will have an impact on each and
every one of the remotes since none will have access to the network.
When operation of the network does not tolerate any down time, it is
possible to set up a protected configuration for the Access Point to
greatly reduce the possibility of this happening.
Two or more Access Points can be configured with the same Network
Name and kept active simultaneously, each with its own independent
antenna. In this scenario, iNET Remotes will associate with either one
of the available Access Points. In case of a failure of one of the AP’s the
Remotes will quickly associate with another of the remaining Access
Points re-establishing connectivity to the end devices.
iNET 900
Remote
iNET 900
Remote
iNET 900
Remote
iNET 900
Remote
iNET 900
Access Point
LAN/WAN
REPEATER
LAN
LAN
LAN
POINT-TO-POINT LINK