QUANTUM™ HD COMPRESSOR CONTROL PANEL
COMMUNICATIONS SETUP
090.040-CS (JAN 14)
Page 113
flash each time that data is received (RX).
If communications cannot be established us-
ing COMM-2, then note the status of these two
LED’s (D25 and D26). If D26 is constantly lit, it
may indicate an external wiring issue (TX and RX
possibly swapped). Also verify the position of J7,
and ensure that it is set for pins 2-3 closed.
Also verify that the proper Panel ID, Baud rate,
data bits, and protocol has been setup at the
Quantum™, and matches that of the initiating
device (see the section entitled COMMUNICA-
TIONS SETUP for further details).
COMM-3 (P16)
COMM-3 may only be used for RS-485. There are
no jumpers or LED’s assoiciated with this port.
One of the primary functions of this port would
be for dedicated communications to a Vyper
drive or a solid state DBS motor starter.
Verify that the proper Panel ID, Baud rate, data
bits, and protocol has been setup at the Quan-
tum™, and matches that of the initiating device
(see the section entitled COMMUNICATIONS
SETUP for further details).
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