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8/16 TRIBUTARY DAISY CHAIN SWITCH, BALANCED 40-795/796
pickering
SECTION 1 - TECHNICAL SPECIFICATION
pickering
test
.com
Product Order Codes
8-Tributary Daisy Chain
Switch Balanced Module
40-795-001
16-Tributary Daisy Chain
Switch Balanced Module
40-796-001
Support Products
Self-Test Diagnostic Tool (PI-MXT)
These modules are compatible with Pickering’s 90-100 PI-MXT test
tool. This enables all switch paths to be automatically tested so that
faulty relays can be easily identified. The tool consists of a Windows
executable program and an adapter for the specific module, a user
supplied multimeter capable of 4-wire resistance measurement is
also required.
The PI-MXT test adapter required for the Tributary Daisy Chain
Switch module is as follows:
90-100-229 supports 40-795-001 & 40-796-001
For further details on the PI-MXT tool, please refer to the 90-100
data sheet and user manual available from the Pickering website.
Spare Relay Kits
Kits of replacement relays are available for the majority of Pickering’s
PXI switching modules, simplifying servicing and reducing down-time.
The relay kits for the 40-795/796 range are as follows:
91-100-040 & 91-100-023 kits for 40-795-001
91-100-040 & 91-100-023 kits for 40-796-001
For further assistance, please contact your local Pickering sales office.
General Specification
Maximum Voltage:
Maximum Power:
Maximum Switch Current:
100VDC/100VAC
30W
1A
On Path Resistance:
Off Path Resistance:
<1.5
Ω
for all connections
(except for Daisy Chain In
– Daisy Chain Out, which
is <5
Ω
)
>1x10
8
Ω
Expected Life (Low Power):
Expected Life (Max Power):
>1x10
8
operations
>2x10
5
operations
Total Switching Time:
Relay Mechanical Setting Time:
10ms
<3ms
R.F. Specification
Characteristic Impedance:
100/120
Ω
Insertion Loss
Test Signal to Rx/Tx:
Daisy Chain:
<0.25dB to 10MHz
<0.5dB (40-795) and
<1dB (40-796) to 10MHz
VSWR
Test Signal to Rx/Tx:
Daisy Chain:
<1.3 to 10MHz
<1.5 to 10MHz (40-795)
and to 5MHz (40-796)
Power Requirements
+3.3V
+5V
+12V
-12V
0
500mA
0
0
Width and Dimensions
Single width 3U PXI/CompactPCI instrument module
consisting of mother and daughter cards (40-796) or mother
card only (40-795)
3D models for all versions in a variety of popular file formats
are available on request.
Connectors
PXI bus:
32-bit P1/J1 backplane connector
Front panel connector: 96-pin male micro-D
Using The Tributary Daisy Chain Switch
The 40-795/796 comprises 2 sections (see graphic on
previous page).
1. Daisy-Chain switches. These are used to feed 2M signals
into and out of the DUT (device under test), any selection of
tributaries may be routed (e.g. all even, all odd, etc).
2. Breakout multiplexer. This is used to test a specific
tributary.
The 40-795/796 is programmed as a 4x16 matrix:-
1st row
is used to route the Daisy-Chain switches. The
default setting is for all tributaries to be selected.
2nd row
is used to switch polarity.
3rd row
is used to select the receive multiplexer to a specific
tributary.
4th row
is used to select the transmit multiplexer to a specific
tributary.
Mating Connectors & Cabling
For connection accessories for the 40-795/796 modules please
refer to the
90-016D
96-pin micro-D connector data sheet
where a complete list and documentation can be found for
accessories, or refer to the Connection Solutions catalog.
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