June 28, 2016, 715003956 Rev. C
Page 101
D.10 Connecting ethernet cables
Requirement: Use shielded Ethernet cables with the instrument to ensure compliance with FCC,
and other, limits.
To make Ethernet connections:
1. Connect one end of one shielded ethernet cable to the network switch, and then connect
the other end to the Ethernet card on the preconfigured ACQUITY
®
workstation.
Tip: On preconfigured systems, the Ethernet card is identified as the Instrument LAN card.
2. Connect one end of the other shielded Ethernet cable to the back of the instrument, and
then connect the other end to the network switch.
D.11 Input/output signal connectors
The instrument’s rear panel includes a removable connector that hold the screw terminals for I/O
signals. These connectors are keyed so that they can receive a signal cable inserted only one
way.
Warning: To avoid electric shock, separate all electrical connections to the rear panel from
hazardous voltages by double or reinforced insulation. Circuits of this type are classified as
safety extra low voltage (SELV). Examples of circuits that are typically SELV include contact
closure inputs and outputs for autosamplers, and UV, RI, and fluorescence detector signal
outputs for LC/MS systems. The electrical connections on the rear panel of this mass
spectrometer are all SELV.
Notice: To avoid damage to the instrument, do not exceed these voltages:
• ±30 Vdc to the Analog (Out) connection.
• 30 Vdc to the Stop Flow (Out), Inject Start (In), Switch 2 (Out), Switch 3 (Out), and
Switch 4 (Out) connections.
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