HP E8402A, Руководство пользователя и обслуживания, Страница: 29 / 249

Using the Enhanced Monitor 31 Chapter 2
Using the Enhanced Monitor
The Enhanced Monitor is a separate PC board that plugs into the VXI
backplane from the rear of the mainframe. In this way it does not occupy a
user slot on the front of the mainframe. The Enhanced Monitor uses a
standard-defined P1 Connector but a uniquely-defined P2 Connector. It is a
message-based, slave-only VXI interface card, complete with its own VXI
logical address. Refer to Chapter 3 of this manual for SCPI programming
information. This section provides general information about the Enhanced
Monitor.
•
RS-232 Interface supports communication with a terminal or
computer for remote monitoring purposes only. Refer to Chapter 3 for
SCPI programming information.
-- All SCPI command are supported by the RS-232 interface.
-- The RS-232 interface is set-up only through SCPI commands.
Settings are stored in non-volatile memory. Factory defaults are:
9600 Baud, 8 bits, No Parity, 1 Stop Bit, DTR/RTS On, XON
Pacing.
•
Ambient Temperature Monitor (
±
2
°
C). The sensor is located in the
intake air stream path just above the mainframe impeller.
-- A user-defined limit can be set, default is 55
°
C.
-- Limit is restored from non-volatile memory at power-on.
-- When the limit is exceeded, the monitor generates a warning on the
display, sets a status bit, the temperature LED flashes, and the
beeper sounds (if enabled).
•
Power Supply Temperature Monitor (
±
2
°
C). The sensor is located
under a power supply transformer. The reading is indicative of overall
power supply loading.
-- If the temperature exceeds an expected level, the monitor generates
a warning on the display, sets a status bit, the power supply LED
flashes, and the beeper sounds (if enabled).
•
Module Exhaust (Slot) Temperature Monitor (
±
2
°
C). Three
sensors, front, middle, and rear are located above each slot.
-- Temperatures may be queried in actual
°
C or as temperature rise
above ambient (in
°
C).
-- User-definable limits can be set for the entire cardcage or on a
slot-by slot basis.
-- Limit may be set in actual temperature (default is +65
°
C) and as
temperature rise above ambient (default is +15
°
C).
-- Limits are restored from non-volatile RAM at power-on.
-- If a slot temperature exceeds the specified limit, the monitor
generates a warning on the display, sets a status bit, the temperature
LED flashes, and the beeper sounds (if enabled).