Alstom DS Agile H38 Series, Инструкция по установке и эксплуатации

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Global Documentation H38x/EN GL/D11
DS Agile H38x Page 47/53
There are three commands associated with controlling the PRP ports. They are outlined in
the diagram below:
prpPortOnOff
PRP Port A
Op
ti
c
al t
ra
n
sc
eiver
PHY
PRP Core
prpPhyOnOff
PrptransceiverADisable
Port B
FIGURE 15: H38X PRP CONTROL
The command “prpPortOnOff”, turns the core port on or off. The command “prpPhyOnOff”
turns an external physical layer on or off. The command “prpTransceiverADisable <0/1>”
enables or disables optical transceiver A. The command “prpTransceiverBDisable <0/1>”
enables or disables optical transceiver B. If set to ‘1’the port continues to receive data but
does not transmit data. If set to ‘0’, the port is enable to transmit as well as receive.
Typing in the “forceRelay” and “unforceRelay” commands will drive the alarm contacts
associated with the status of the PRP network optical links according to the figure below:
~ # forceRelay2 1
~ # forceRelay2 0
~ # unforceRelay1
~ # unforceRelay2
Relay2 is ON whatever the state of optical link B
Relay2 is OFF whatever the state of optical link B
Relay1 is ON if optical link A is down, OFF it the link is good
Relay2 is ON if optical link A is down, OFF it the link is good
Relay1 or Relay 2