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2600AS-901-01 Rev. B / September 2008
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1-13
Series 2600A System SourceMeter® Instruments Reference Manual
Section 1: Getting Started
9. Triax connector
on Ground Module
Channel A and Channel B low noise chassis ground triax connectors. Use only low-noise triax cables such
as the Keithley Model 7078-TRX. Connector terminals and associated triax cable connectors are as
follows:
10. Phoenix connector
on Ground Module
Channel A and Channel B Low noise chassis ground Phoenix connector.
11. LAN
Use this RJ-45 connector to connect the instrument to the local area network. The RJ-45 connector
connects a network card, a network switch, a router or a hub. When connecting directly to a PC, a
crossover cable (included) must be used. When connecting to a network switch, router, or hub, a normal
CAT-5 cable (not provided) should be used unless your equipment has Auto-MDIX capabilities. If it does
have Auto-MDIX, the crossover cables may be used.
Cooling vents
The Series 2600A has side intake and rear exhaust vents. One side must be unobstructed when
rack mounted to dissipate heat. Do not place a container of liquid (water or coffee for instance) on
the top cover. If it spills, the liquid will enter the case through the vents and cause severe damage.
Excessive heat could damage the Series 2600A and degrade its performance. The Series 2600A
must be operating in an environment where the ambient temperature does not exceed 50°C.
CAUTION
To prevent damaging heat build-up and ensure specified performance,
observe to the following precautions:
The rear exhaust vent and at least one side vent must be kept free of any
obstructions. Even partial blockage could impair proper cooling.
DO NOT position any devices adjacent to the Series 2600A that force air
(heated or unheated) into or onto its cooling vents or surfaces. This
additional airflow could compromise accuracy performance.
When rack mounting the Series 2600A, make sure there is adequate airflow
around at least one side to ensure proper cooling. Adequate airflow enables
air temperatures within approximately one inch of the Series 2600A
surfaces to remain within specified limits under all operating conditions.
Table 1-2
Triax connector on ground module
Connector
Center conductor
Inner ring
Outer ring
LO
Output Lo
Floating
Chassis Ground
Triax cable
Center conductor
Inner shield
Outer shield