Extron Electronics PowerCage 1600 Enclosure User Guide - Manual (Page 16)

PowerCage 1600 Enclosure • Operation 10
c
Fan status LEDs — These LEDs indicate whether the fans that cool the enclosure are
operating.
1
FAN
2
FAN
Alarm LED — Lights when the corresponding fan malfunctions.
Power LED — Lights when the corresponding fan receives power.
d
Communication selection (Comm Select) button — Press this button to select
the desired board to connect to the Config port (
e
). With each button press, the
serial connection changes from one active, installed board to the next. The Comm LED
(see
a
) for the selected board lights.
NOTES: • When unit power is cycled (removed then restored), the serial connection
returns to the board in the lowest-numbered slot.
• The Comm LED lights for each installed, powered board as its slot is
selected, regardless of the type of board. However, RS-232 communication
works only with FOX boards; commands and queries cannot be sent to or
passed through the MTP boards.
e
Configuration and communication (Config) port — For RS-232 serial
communication with any installed board, connect a Windows ® -based PC or an RS-232
control system to this 2.5 mm mini stereo-style (tip-ring-sleeve) jack. Use the Extron
9-pin D to 2.5 mm st ereo mini TRS RS-232 cable (part number 70-335-01, shown in the
following figure) or make your own cable.
5
1
9
6
6 feet
(1.8 m)
Part 70-335-01
Sleeve (Gnd)
Ring
Tip
9-pin D Connection TRS Plug
Pin 2 Computer's Rx line Tip
Pin 3 Computer's Tx line Ring
Pin 5 Computer's signal ground Sleeve
Figure 7. 9-pin D to 2.5 mm Stereo Mini TRS RS-232 Cable
RS-232 protocol varies depending on the board being communicated with (see the
specifications section), but all boards accept this basic set of protocol:
• 9600 baud • 1 stop bit • no parity
• 8 data bits • no flow control
NOTE: This port allows serial communication to the boards only, not to the
enclosure, itself. The power supply and fan status LEDs provide feedback
about the condition of the enclosure.
f
Temperature status (Temp) LED — This LED lights when the unit as a whole
is operating at a dangerously high temperature (approximately 167 °F [75°C]) and
equipment damage is imminent. If the Temp LED lights, power down the unit, ensure
adequate ventilation, and allow the PowerCage system to cool before restoring power.