Specifications

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MESA CONTROL UNITSMESA CONTROL UNITS

MESA CONTROL UNITS

There are three basic models of the MESA Control Unit: the MESA 16, the MESA 32 and the MESA II. Each

contain power supplies and an expansion motherboard. The Control Module and Expansion Interface Mod-

ules plug into the motherboard so that one Control Module can control up to 32 Expansion Chassis. The

system shown in Fig. 1 has a MESA 16 Control Unit and four Expansion Chassis arranged and addressed as a

32x16 Matrix. This leaves 12 additional ports to expand the system by adding twelve Expansion Chassis.

MESA-2

LX/128-E #0 LX/128-E #1

LX/128-E #3 LX/128-E #2

0 thru 15 16 thru 31

thru

0123456789

10111213

Expansion Ports

Mesa 16 Control Chassis

Remote Control

AC Input

Power

Supply

Manual

Control

Expansion Interface Cable

Fig. 1

MESA TMESA T

MESA T

O EXPO EXP

O EXP

ANSION CHASSIS DISTANSION CHASSIS DIST

ANSION CHASSIS DIST

ANCEANCE

ANCE

Individual Expansion Chassis are normally supplied with 6 foot cables. The expansion chassis can be furnished with ribbon

cables up to a length of 20 feet on request. Expansion chassis may be located up to 200 feet from the MESA if a better,

shielded cable is used. To discuss these options please contact CYTEC's sales staff.

MESA II CONTROL UNITMESA II CONTROL UNIT

MESA II CONTROL UNIT

The MESA II is a 19" rack mounting chassis, 5.25" high and 15"

deep. It accepts one or two of the CM-8 IEEE488/RS232/

Ethernet Control Modules and also has 16 Expansion Ports that

control up to 16 Expansion Chassis. It is optimized to control

several large solid state expansion chassis, such as the DX/

256x256 Series. All modules are hot swappable.

MESA 16 CONTROL UNITMESA 16 CONTROL UNIT

MESA 16 CONTROL UNIT

This is a 19" rack mounting chassis, 3.5" high and 15" deep. It

accepts the CM-1, CM-5 and IF-6 Control Modules and also

has 16 Expansion Ports that control up to 16 Expansion Chas-

sis as shown in Figure 1. Its power supplies output sufficient

logic power to drive all Expansion Chassis and relay power to

energized up to 200 relays at the same time.

MESA 32 CONTROL UNITMESA 32 CONTROL UNIT

MESA 32 CONTROL UNIT

This is a 19" rack mountable chassis, 7" high and 15" deep

which will accept the same Control Modules as the MESA 16. It

has 32 Expansion Ports to control up to 32 Expansion Chassis.

Power supplies have sufficient logic power to drive all 32 Ex-

pansion Chassis and relay power to energize up to 200 relays

at once.

CONTROL MODULESCONTROL MODULES

CONTROL MODULES

The Control Modules are plug compatible with the MESA control Units and utilize the same command struc-

tures for Control and Switch Selections. The commands for Mode Control are Latch, Unlatch, Matrix Mode,

Mux Mode, Clear or Status Request. The standard commands for addressing a Switchpoint select an indi-

vidual Matrix, Module and Switch.

Control modules are available that control the MESA 16&32 chassis via TTL, combined IEEE488/RS232, 10BaseT

Ethernet LAN or USB. Standard or special firmware is installed on the modules, with the special firmware

being for for some custom applications. In Matrix configurations, programming commands can address

Input and Output numbers to select crosspoints, while in Multiplexer modes commands can address one

Channel number to select the appropriate switch.

RELARELA

RELA

Y POWER REQUIREMENTSY POWER REQUIREMENTS

Y POWER REQUIREMENTS

The 12 volt relay power supplied with the MESA 16 & 32 Control Units is sufficient for most Matrix or Multiplex operations.

However, some applications require a larger number of switches to be closed. For these cases, two options are offered:

An Auxiliary Power Supply Chassis or Powered Expansion Chassis.

POWERED EXPPOWERED EXP

POWERED EXP

ANSION CHASSISANSION CHASSIS

ANSION CHASSIS

This is a separate 19" rack mounting chassis, 3.5" high and 12"

deep with +5 volt logic power for up to 32 Expansion Chassis

and relay power to energize up to 500 relays.

UXUX

-1 POWER SUPPL-1 POWER SUPPL

-1 POWER SUPPL

Where the power requirement in individual Expansion Chassis

is large, each Expansion Chassis can be supplied with its own

dedicated relay power supply capable of energizing up to 200

relays in that chassis.