NEC NEAX 2000 IPS Installation Manual page 529

LAMP
COLOR
NAME
B00 Red
Switch Settings
This card has no switches.
B channel status
ON : B0 channel of the No. 0 circuit is in use.
OFF : B0 channel of the No. 0 circuit is in idle.
Flash (60 IPM) : CS (ZT) is not connected to the No. 0 circuit.
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FUNCTION
CS (ZT) is in make-busy status.
PN-2CSIH (CSI)
NWA-008841-001 Rev.5.0
90ch3004.fm