Specifications
Fig. 1
CXR REED OR ARMATURE RELAY SWITCH MODULES
Is the same as the model -1HT but
without termination.
Fig. 3
These switch modules use reed or armature relays interconnected by characteristic impedance striplines
and are completely bi-directional. They are an excellent , cost effective choice for applications below
200 MHz. BNC connectors are standard. Bus bars are available to build larger congurations, but lower
bandpass. These modules provide the best solution for lower frequency applications that require coaxial
connections.
CXR/8x1-1T-BNC
This module has single pole Type T
relays which terminate the inputs to the
required impedance as shown in Fig. 2.
Energizing the selected relay removes
the termination from the input and closes
the circuit.
CXR/8x1-1HT
This is a High Isolation Module with
relays which terminate the inputs to the
required impedance, and they have ad-
ditional isolation relays as shown in Fig.
5 which decrease the crosstalk between
channels by 20dB. Energizing a relay
removes the terminating impedance and
completes the selected path.
CXR/8x1-HS
Has the same high isolation characteris-
tics as the model -1HT but without input
terminations.
CXR/4x1-1HT
Has the same characteristics and con-
guration but with only four relays.
CXR/4x1-1HS
CXR/2x1-1S or -2S ( Form A )
This module switches a common port
between A, B or OFF positions as shown
in Fig. 1. Module uses single or two
pole, Type S reed relays. Bandpass is
400 MHz (-3 dB). Crosstalk is -60 dB
at 5 MHz.
CXR/2x1-2C ( Form C )
A two pole 2x1, Form C conguration as
shown in Fig. 4 which allow one input to
be switched to two outputs (A or B). Avail-
able with BNC or Twin BNC connectors,
and uses Type A, Armature relays. This
module defaults to a normally closed
position when off. Bandpass of 200 MHz
(differential into 100 ohms).
Fig. 4
This is an 8x1 two pole conguration as
shown in Fig. 3. Ideal for switching bal-
anced line 100 ohm differential pairs. It
is available with isolated BNC's or Twin
BNC connectors (Twinax), and uses Type
2A relays.
CXR/8x1-2A
CXR/4x1-2A
This is the same 2 wire module but as a
4x1 conguration.
This is the same conguration with only
four relays and without terminations.
CXR/8x1-1S-BNC
This is the same conguration but without
termination.
CXR/4x1-1T-BNC
This is the same terminated conguration
but with only four relays.
CXR/4x1-1S-BNC
Fig. 2
Fig. 5
CXAR-5
Isolation @ 100 MHz
SWITCH CHARACTERISTICS
Switch Voltage 200V 200V 110 V
Switch Current 0.5A 0.25A 1.0A
Breakdown Voltage 400V 200V 750V
Operating Time 1ms 1ms 3 ms
Life Expectancy 10
8*
10
8
2x10
5*
Type S Type T Type 2A
Contact Rating 10VA 3VA 60VA
HIGH FREQUENCY SPECIFICATIONS
Type
CXR/8x1-1 and 4x1-1 300 60dB
CXR/8x1-T and 4x1IT 300 65dB
CXR/8x1-HS and 8x1-HC 250 70dB
CXR/4x1-HS and 4x1-HT 300 70dB
CXR/8x1-2A and 4x1-2A 200 45dB
Bandpass MHz
* @ 900 MHz 10 Watts