User's Manual

Main Remote Access Units
InterReach Spectrum Remote Access Unit Installation Guide Page 7
TECP-77-222 Issue 2 • 300001759666 Rev B • December 2013 © 2013 TE Connectivity Ltd.
MRAULEDs
Ref # LED LED Color Description
1
FWD SECONDARY PORT 
(1 - 3)
• Green • Downstream unit correctly connected; unit has no alarms or a
Minor alarm is active.
• Blinking Green • SRAU or band is set out-of-service.
• Yellow • FWD cable connected to SRAU, no REV cable connected.
• Blinking yellow • FWD and REV cables are not connected to the same port number
(incorrectly paired).
• Red • Major alarm in downstream unit, fault lockout, or SRAU
disconnected.
• Off • No SRAU previously connected.
2 LINK
•Green •MRAU receiving communications from the IFEU.
• Red • MRAU has not received communications from the IFEU for more
than 90 seconds.
• Off • During initial power up, MRAU is powering up and waiting for IFEU
communications.
3 STATUS
• Green • Unit has no alarms or a Minor alarm is active.
• Blinking green • Unit or band is set out-of-service.
• Red • Major alarm detected.
4
REV SECONDARY PORT
(1 - 3)
• Green • Downstream unit correctly connected, unit has no alarms or minor
alarm
• Blinking Green • SRAU or band is set out-of-service.
• Blinking Yellow • FWD and REV cables are not connected to the same port number
(incorrectly paired).
• Red • Major alarm in downstream unit, fault lockout, or SRAU
disconnected.
• Off • No SRAU previously connected.
5 FWD IF IN
• Green • MRAU is powered on correctly.
•Yellow or
Blinking Yellow
• There is an IFEU FWD connection, but there is no IFEU REV
connection or the IFEU REV connection is paired incorrectly.
• Off • Cable is not connected to the IFEU FWD port.
REV IF OUT REV SECONDARY PORTS
1 2 3
FWD SECONDARY PORTS
1 2 3
FWD IF IN
LINK STATUS
415
2 3