Specifications

PX-3
TWO POLE SWITCH MODULES
These Modules are available as either 2x16 Matrices or two 2x8 Matrices and with either Type S
dry reed relays, Type M mercury wetted reed relays or Type LT low thermal relays.
The inputs to the modules can be either BNC receptacles (-N), 20 pin headers (-H) or screw
terminals (-S).
Both the center conductor and isolated shield of the BNC are switched. The 20 pin header or
screw terminals can be used for shielded twisted pair cables where the signal pair is switched
and the shield is carried through the matrix.
The module outputs go to two 25 pin card edge connectors which plug into two motherboards
bussing the modules into the matrix configuration.
PX/2x16-2 SWITCH MODULE
This is a 2x16 Switch Module shown in Fig. 3 with two input
connectors and 16 outputs on two card edge connectors.
Sixteen of these modules can be assembled in the PX/512-
2A Chassis to make a 32x16 Matrix as shown in Fig. 5.
Fig. 3 PX/2x16-2 Switch Module
Fig. 4 PX/2(2x8)-2 Switch Module
PX/2(2x8)-2 SWITCH MODULE
This module has two 2x8 Matrices as shown in Fig. 4 with 4
input connectors and two sets of 8 outputs on the card edge
connector.
Sixteen of these modules can be assembled in the PX/512-
2B Chassis to make two separate 32x8 Matrices or bussed
on the motherboard as shown in Fig. 6 to make one 64x8
Matrix.
MATRIX CONFIGURATIONS
Fig. 5 32x16 Matrix
Fig. 6 64x8 Matrix
0123456789101112131415
A
B
01 6789 1415
A
B
C
D
01 67
SIGNAL MOTHERBOARD
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0 1 2 3 4 5 6 7 60 61 62 63
0
1
2
3
4
5
6
7