User manual


Overview
1Ć5
1.2 PPX:500-5053—Single Communication Channel
Peerlink PPX:500-5053, which uses one communication channel, provides
an active monitor and a backup, or “passive monitor”, selected by the active
monitor . This model might be preferred in applications where media loss is
not a problem but where continuous operation in necessary in the event
that the active monitor fails. Figure 1-2 illustrates a typical single-channel
Peerlink network with both active and passive monitors assigned.
The active monitor (station #1 in this drawing) automatically assigns the
station with the next higher network address as the passive monitor
. If
station #1 fails, the passive monitor (station #2) assumes the role of active
monitor , designates a new passive monitor , and network operation
continues.
Network
Address
#1
N.A.
#2
N.A.
#5
N.A.
#4
N.A.
#3
ACTIVE
MONITOR
PASSIVE
MONITOR
PEERLINK
MODULE
PEERLINK
MODULE
PEERLINK
MODULE
PEERLINK
MODULE
PEERLINK
MODULE
SERIES
500
P/C
SERIES
500
P/C
SERIES
505
P/C
SERIES
500
P/C
SERIES
505
P/C
N.A. = network address
Figure 1-2 Diagram of PPX:500-5053 or PPX:505-7354 Network