Specifications

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LXB MALXB MA

LXB MA

TRIX SERIESTRIX SERIES

TRIX SERIES

Fig. 3

Fig. 4

LXB/2(16x4) MAINFRAMELXB/2(16x4) MAINFRAME

LXB/2(16x4) MAINFRAME

LXB/64x2 MAINFRAMELXB/64x2 MAINFRAME

LXB/64x2 MAINFRAME

LX-3

The LXB Series units are two pole switch matrices and are available as either Mainframes or Expansion

Chassis. They are well suited for use in two wire data communications applications, including T1 and

ISDN, where wiring is minimized and performance is optimized. The following matrix configurations are

available: Two separate 16x4's in one chassis, one 16x8, one 32x4 or one 64x2. Signals connectors

include BNCs, Screw Terminals or Three Pin Headers. Twin BNCs are available at extra cost.

MAINFRAMESMAINFRAMES

MAINFRAMES

There are two basic Mainframes: The LXB/2(16x4) and the LXB/64x2. Both are 19" rack mounting chas-

sis, 3.5" high and 15.6" deep. Each mainframe is built with power supplies and motherboards that hold

up to 16 Switch Modules, 16 Latching/Display Modules and a Control Module. Manual Controls are

optional.

This mainframe accepts up to16 LXB/2(1x4) Switch Modules

to form two separate 16x4 Matrices as shown in Fig. 3.

Jumpering Inputs A & B on the Switch Modules forms a 16x8

Matrix. Motherboard jumpers can also be added to bus Out-

puts 1 & 5, 2 & 6, 3 & 7 and 4 & 8 to connect the two 16x4

Matrices to create a single 32x4 Matrix.

Bandpass is 40 MHz at -3dB and Crosstalk is less than -60dB

at 10 MHz.

Signal

Inputs

LXB Mainframe

with LXB/2(1x4)

Switch Modules

LXB/64x2-E EXPLXB/64x2-E EXP

LXB/64x2-E EXP

ANSION CHASSISANSION CHASSIS

ANSION CHASSIS

This mainframe accepts up to 16 LXB/4(1x2) Switch Modules

and one Signal I/O Module. The Signal I/O Module intercon-

nects the Signal Motherboard bus traces to form a 64x2 Matrix

as shown in Fig. 4.

Bandpass is 15 MHz and Crosstalk is less than -60dB at 10

MHz.

LXB/2(16x4)-E EXPLXB/2(16x4)-E EXP

LXB/2(16x4)-E EXP

ANSION CHASSISANSION CHASSIS

ANSION CHASSIS

This unit has the same motherboards as the Mainframe without

power supplies, and is controlled from a MESA Unit as described

in the MESA Bulletin.

This unit has the same motherboards as the Mainframe with-

out power supplies, and is controlled from a MESA Unit as

described in the MESA Bulletin.

LXB SWITCH MODULESLXB SWITCH MODULES

LXB SWITCH MODULES

LXB/4(1x2) SWITLXB/4(1x2) SWIT

LXB/4(1x2) SWIT

CH MODULECH MODULE

CH MODULE

LXB/2(1x4) SWITLXB/2(1x4) SWIT

LXB/2(1x4) SWIT

CH MODULECH MODULE

CH MODULE

This module has 8, single or double pole relays arranged as

two separate 1x4 matrices as shown on Fig. 3. It plugs into

the LXB Signal Motherboard. The two matrices, A & B, can

be jumpered on the module to create one 1x8 matrix.

This module is available with Type S Standard, Type M Mer-

cury, Type LT Low Thermal and Type HV High Voltage relays.

The following connectors are available: Type E- 20 pin card

edge, Type N - BNC receptacles, Type H - Three Pin Headers

or Type ST - Screw Terminals. Twin BNCs are available at

extra cost.

This module has 8, single or double pole relays arranged as

four 1x2 matrices as shown in Fig. 4.

The module is available with Type S, Type M or Type LT re-

lays.

The following connectors are available: Type N - BNCs, Type

H - Three Pin Headers or Type ST - Screw Terminals. Twin

BNCs are available at extra cost.

Signal

Inputs

LXB Mainframe

with LXB/4(1x2)

Switch Modules

CL8 LACL8 LA

CL8 LA

CHING/DISPLACHING/DISPLA

CHING/DISPLA

Y MODULEY MODULE

Y MODULE

The CL8 Latching/Display Modules drive the selected relay

and have individual LEDS that show every switchpoint state

(open or closed).

LXB/2(1x4)-2PLXB/2(1x4)-2P

LXB/2(1x4)-2P

ST SWITST SWIT

ST SWIT

CH MODULECH MODULE

CH MODULE

This module is similar to the above, except it is built with 8,

two pole Type P Power Relays and Screw Terminal connec-

tors. It is used for higher power or current applications where

a matrix configuration is required. Mating connectors are in-

cluded in the price of the module.

MOTHERBOARD

OUTPUTS

SIGNAL OUTPUTS

LXB/(1x8) SWITLXB/(1x8) SWIT

LXB/(1x8) SWIT

CH MODULECH MODULE

CH MODULE

This module has 8, single or double pole relays arranged as

one 1x8 matrix.

The module is available with Type S, Type M or Type HV

relays and Type E - 20 pin card edge connectors.