Oldham MX43 - Page 16

16 MX43
User manual
Internal motherboard view
084
Figure 9: Internal view of the wall-mounted version (top) and rack mounted version
(bottom).
Ref. Function
A. LED digital communication status indicators.
The information displayed by each red-green diode pair of a line is interpreted as follows:
LED Status
Red Green
Significance
Fast blinking Fast blinking Normal functioning of the line
- Tx communication request
- Rx: response of digital module(s).
Irregular
blinking
Irregular
blinking
Bad communication quality with at least one
module.
Blinks 1X/sec Off Communication failure. Absence or failure of line
modules.
A communication failure is signaled by the
activation of the internal buzzer, the presence of
the orange failure indicator and via the default
relay.
Off Off No digital module active on the line.