SBG 3/15/01
Rev. A
GENERAL
MATRIX CONFIGURATION:
6 rows
×
8 columns.
CONTACT CONFIGURATION:
2 pole Form A.
FIRMWARE:
Specified for Model 2700 rev. B03 and Model 2750 rev. A01.
RELAY TYPE:
Latching electromechanical.
ACTUATION TIME:
<3ms.
CAPABILITIES
DMM CONNECTION:
2-Wire Functions
Row 1, channels 1–8, through channel 50.
4-Wire Functions
Row 1, channels 1–4 (Input) through channel 50 and Row 2, chan-
nels 13–16 (Sense), through channel 49.
CLOSE CHANNEL:
CLOSE command connects channels 1–8 to DMM.
For 4-wire, channels 1–4 are automatically paired with channels 13–16.
ROUTe:MULTiple allows any combination of rows and columns to be
connected at the same time.
INPUTS
MAXIMUM SIGNAL LEVEL: Any Channel to Any Channel (1–48):
300VDC or 300Vrms (425V peak) for AC waveforms, 1A switched, 60W,
125VA maximum.
SAFETY:
Conforms to European Union Directive 73/23/EEC EN61010-1,
CAT I.
CONTACT LIFE (typ):
>10
5
operations at max signal level.
>10
8
operations cold switching.
CONTACT RESISTANCE:
<1
Ω
any path and additional 1
Ω
at end of con-
tact life.
CONTACT POTENTIAL:
<3µV per contact pair.
OFFSET CURRENT:
<100pA.
CONNECTOR TYPE:
50-pin female D-shell for rows and columns.
25-pin female D-shell for “daisy-chain” rows.
Supplied with male IDC ribbon cable connectors.
ISOLATION BETWEEN ANY TWO TERMINALS:
>10
9
Ω
, <200pF.
ISOLATION BETWEEN ANY TERMINAL AND EARTH:
>10
9
Ω
, <400pF.
CROSS TALK (1MHz, 50
Ω
Load):
<–35dB.
INSERTION LOSS (50
Ω
Source, 50
Ω
Load):
<0.35dB below 1MHz.
<3dB below 2MHz.
COMMON MODE VOLTAGE:
300VDC or 300Vrms (425V peak) for AC
waveforms between any terminal and chassis.
ENVIRONMENTAL:
OPERATING ENVIRONMENT:
Specified for 0°C to 50°C.
Specified to 50% R.H. at 35°C.
STORAGE ENVIRONMENT:
–25°C to 65°C.
WEIGHT:
<0.52kg (1.16 lb).
ACCESSORIES AVAILABLE:
Model 7789 50/25 Pin Male D-Shell Solder Cup Connectors
Model 7790 50/50/25 Pin Female/Male D-Shell IDC Connectors
1
2
3
4
5
1
2
3
4
Matrix Crosspoint
HI
LO
6
7
8
5
6
HI
LO
Input
HI
LO
Sense
To DMM
Backplane
Columns
Rows
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
50
49
1
2
3
4
5
6
7
8
7709 6
×
8 Matrix Module
