ABB Switzerland Ltd 1KHW001489-EN ETL600
3.3.3.1. Frontplate P4LT
IRIG-B
V.11 PORT 1 V.24 PORT 2 V.24 PORT 1
HMI
DSP
P4LT
HW
SYS
P4LT
LNK
RDY
'RDY' LED red: System ready
Lights if the ETL600 system is in normal
operation.
'P4LT' LED red: Module hardware alarm
Lights if a hardware alarm on P4LT is
detected.
'SYS' LED red: Cabinet alarm / System alarm
Lights if a system alarm is present.
'HW' LED red: Hardware alarm
Lights if a hardware alarm on one or more of
the ETL600 modules is detected.
'LNK' LED red: Link Alarm
Lights if the link for either channel 1, 2 or 3 is
disturbed.
'U ' LED yellow: System warning
Lights if the system is not in normal
operation mode and no system alarm is
present.
'HMI' Socket for HMI communication port (9 pin
RS-232 configured as DCE)
'IRIG-B' Socket for IRIG-B input for RTC
synchronization
'V.24 PORT 1' Socket for V.24 data port 1
'V.24 PORT 2' Socket for V.24 data port 2
'V.11 PORT 1' Socket for V.11 data port 1
Fig. 3-15 Frontplate P4LT
3-24 November 2005 Structure and Function