Interlogix NS3550-8T-2S User Manual - Manual (Page 299)

User’s Manual of NS3550-8T-2S
299
 Hold Off Time The timing value to be used to make persistent check on Signal Fail before
switching.
The range of the hold off timer is 0 to 10 seconds in steps of 100 ms
 Version ERPS Protocol Version - v1 or v2
 Revertive In Revertive mode, after the conditions causing a protection switch has cleared,
the traffic channel is restored to the working transport entity, i.e., blocked on the
RPL.
In Non-Revertive mode, the traffic channel continues to use the RPL, if it is not
failed, after a protection switch condition has cleared.
 VLAN Config VLAN configuration of the Protection Group. Click on the "VLAN Config" link to
confure VLANs for this protection group.
PRL Configuration:
Object Description
 PRL Role It can be either RPL owner or RPL Neighbour.
 PRL Port This allows to select the east port or west port as the RPL block.
 Clear If the owner has to be changed, then the clear check box allows to clear the RPL
owner for that ERPS ring.
Instance Command:
Object Description
 Command Administrative command. A port can be administratively configured to be in either
manual switch or forced switch state.
 Port Port selection - Port0 or Port1 of the protection Group on which the command is
applied.
Instance State:
Object Description
 Protection State ERPS state according to State Transition Tables in G.8032.
 Port 0 OK : State of East port is ok
SF : State of East port is Signal Fail
 Port 1 OK : State of West port is ok
SF : State of West port is Signal Fail
 Transmit APS The transmitted APS according to State Transition Tables in G.8032.
 Port 0 Receive APS The received APS on Port 0 according to State Transition Tables in G.8032.
 Port 1 Receive APS The received APS on Port 1 according to State Transition Tables in G.8032.
 WTR Remaining Remaining WTR timeout in milliseconds.
 RPL Un-blocked APS is received on the working flow.
 No APS Received RAPS PDU is not received from the other end.
 Port 0 Block Status Block status for Port 0 (Both traffic and R-APS block status). R-APS channel is
never blocked on sub-rings without virtual channel.
 Port 1 Block Status Block status for Port 1 (Both traffic and R-APS block status). R-APS channel is
never blocked on sub-rings without virtual channel.
 FOP Alarm Failure of Protocol Defect(FOP) status. If FOP is detected, red LED glows; else
green LED glows.