Trane CVHH CenTraVac Installation, Operation And Maintenance Manual page 49

Figure 32. LED locations
Marquee LED
TX
RX
LINK
CVHH-SVX001G-EN
LINK MBUS IMC
SERVICE
ACT
Table 16. LED behavior
LED
Powered. If the Marquee LED is green solid, the
UC800 is powered and no problems exist.
Low power or malfunction. If the Marquee LED
Marquee LED
is red solid, the UC800 is powered but there are
problems present.
Alarm. The Marquee LED blinks red when an alarm
exists.
The TX LED blinks green at the data transfer rate
when the UC800 transfers data to other devices on
LINK, MBUS, the link.
IMC The RX LED blinks yellow at the data transfer rate
when the UC800 receives data from other devices
on the link.
The LINK LED is solid green if the Ethernet link is
connected and communicating.
Ethernet Link
The ACT LED blinks yellow at the data transfer rate
when data flow is active on the link.
The Service LED is solid green when pressed. For
Service
qualified service technicians only. Do NOT use.
I I m m p p o o r r t t a a n n t t : : Maintain at least 6 in. (16 cm) between low-
voltage (less than 30V) and high voltage
circuits. Failure to do so could result in
electrical noise that could distort the
signals carried by the low-voltage wiring,
including inter-processor communication
(IPC).
I I n n s s t t a a l l l l a a t t i i o o n n : : C C o o n n t t r r o o l l s s
UC800 Status
49