Moog Focal 903, Руководство пользователя

Страница: 24 / 96

903-0628-00 Rev. 1 Model 903-HD User's Guide – FMB-X-2.5
Focal Technologies Corp. Page 3-4
LED Description
STAT
STAT (Status) LED is green when on-board diagnostic readings are within expected values.
The STAT LED is orange (warning) if any of the on-board diagnostic readings are close to an
alarm state. The STAT LED is red (alarm) if any of the on-board diagnostic readings are
outside of the specified range, in which case the diagnostic software should be used to
troubleshoot the problem. Monitored signals included temperature and all major voltage rails
(+12V, -12V, +5V, and +3.3V). An alarm state exists if any voltage is worse than ±20% of
nominal value or temperature is > +80C. A warning state exists if any voltage is worse than
±10% of nominal value or temperature is > +75C, but the reading is not in an alarm state.
F1/F2
F1/F2 LEDs indicate which fiber is active, per the marked ST bushings. The active fiber is
shown by the green LED. The LED(s) will turn red if no link is present.
AUTO
AUTO LED is green when the fiber switch is in automatic mode, as determined by the toggle
switch position. When in automatic mode and there is no link, this LED will be red.
Diagnostics are available at the 1/8" (3.5 mm) stereo jack in RS-232 format compatible with the standard
Model 903 Diagnostics GUI software, e.g. 903-0406-00. Wiring for the RS-232 connections is shown in the
figure below.
1/8” (3.5 mm) STEREO PLUG, RT ANGLE
DB9 FEMALE
3 - GROUND
2
1
P1
P2
STEREO PLUG : P1 DB9F : P2
P1:1
P1:2
P1:3
P2:3 TX
(DATA FROM PC TO FMB)
P2:2 RX
P2:5 GND
(DATA INTO PC FROM FMB)
DB9F FRONT VIEW
5
9
1
6
TO FMB
TO PC
Figure 3-4: FMB-X-2.5 RS-232 Diagnostic Cable: 1/8” (3.5 mm) Stereo to DB9F
The functions described in the figure above are relative to the PC (DB9 side), i.e. TX is data transmitted from
the PC to the FMB-X-2.5 and RX is data received into the PC from the FMB-X-2.5. This RS-232 interface also
has command based diagnostics, which provides advanced diagnostics information. See 903-0622-00
diagnostic manual for more information.
Diagnostics are also available via the RJ-45 port as Modbus TCP/IP or through an embedded web server.
Since this port is also used for general Ethernet traffic between remote and console, diagnostics packets are
handled as low priority and must be polled by the external computer. When accessed, diagnostic data
packets typically use up less than 0.1% of the Ethernet channel capacity.
The fiber switch may be placed in automatic mode or forced to fiber F1 or F2 using the front panel toggle
switch (toggle up forces the fiber switch to F1 and toggle down forces it to F2). In automatic mode, with the
toggle switch in the center position, the FMB-X-2.5 tests both fibers on initial power up and chooses the one
with the highest optical power. This will stay locked until the switch is forced to the other fiber, via the toggle
switch, or link is lost on the active fiber. The active fiber is indicated by a green LED next to either F1 or F2.
The LED marked "AUTO" is green when in automatic switching mode and off when in manual mode.
When the optical link is lost in auto mode, the switch toggles automatically roughly once per second between
F1 and F2 for up to 10 times. If no link is found, the switch returns to the original fiber it was on before the link
failure and waits for a link to be re-established. In this fault state, the “AUTO”, “F1” and “F2” LEDs are red and
a continuous audible alarm is produced until a fiber link is restored. Power cycling or manually forcing the
toggle switch to a fiber (F1 or F2 position) and then back to AUTO will reset the automatic fiber switch.