Keithley 2700 Service Manual page 131

7705 40-Channel Control Module
GENERAL
RELAY SWITCH CONFIGURATION: 40 independent channels of 1-
pole switching. Isolated from internal DMM.
CONTACT CONFIGURATION: 1 pole Form A.
RELAY TYPE: Latching electromechanical.
CONNECTOR TYPE: Two 50-pin female D-sub connectors.
INPUTS
MAXIMUM SIGNAL LEVEL: 300VDC or rms, 2A switched, 60W (DC,
resistive), 125VA (AC, resistive).
CONTACT LIFE: Cold Switching: 10
At Maximum Signal Levels: 10
CHANNEL RESISTANCE (per conductor): <1Ω.
CONTACT POTENTIAL: ≤4µV per contact.
OFFSET CURRENT: <100pA.
ACTUATION TIME: 3ms.
ISOLATION: Channel to Channel: >10
Common Mode: >10
CROSSTALK (1MHz, 50Ω load): <–35dB.
INSERTION LOSS (50Ω source, 50Ω load): <0.3dB below 1MHz, <3dB
below 10MHz.
COMMON MODE VOLTAGE: 300V between any terminal and chassis.
ENVIRONMENTAL
OPERATING ENVIRONMENT: Specified for 0°C to 50°C.
Specified to 80% R.H. at 35°C.
STORAGE ENVIRONMENT: –25°C to 65°C.
WEIGHT: 0.45kg (1 lb).
8 closures.
5 closures.
Ω, <50pF.
9
Ω, <100pF.
9
Specifications
IN
Channel 1
OUT
(Channels 2–39)
IN
Channel 40
OUT
A-11