Micromod MOD: 1732N, 1733N External Mini-Link Users Guide - Manual (Page 7)

IB-23C004
INTRODUCTION
1.2 EXPLANATION OF SERIAL AND CATALOG NUMBER
The products described in this book have numbers that help identify specific features.
The general format of these numbers is described below. Specific product descriptions
follow in Section 1.3.
The serial number stamped on the product data plate consists of the catalog number and,
in some cases, a sequential identification number. The serial number, which is described
below, contains a series of single and multiple-character codes. These codes provide
specific information concerning various electrical and/or structural options. Certain
combinations are not allowed. Options and combinations are subject to change.
Base Number
Unused
Electrical Code
ICN Interface
Firmware
Model/Design Level
Sample Serial No. 1733N Z 10 1 01 A – 555
Catalog
Number
Sequential Identification Number
1.3 PRODUCT DESCRIPTIONS
The following product is maintained at the serial and catalog number level. The
descriptions included in this section give a brief overview of its functions and features.
1.3.1 1733N Mini Link/EXT (External)
The 1733N Mini Link/EXT is a serial interface box for communications between a personal
computer and the ICN. The central processor for the External Mini Link is the 63B09E
using an 8-bit bus and a 2 mHz dual phase clock. The processor board checks message
protocol and handles all data transfers between the ICN interface boards and intelligent
devices connected to the serial I/O board. Each ICN interface board services direct
communication with one ICN (up to 15 instruments).
The processor board keeps track of all message requests and responses. A request to
the processor board for foreground (display) data from a host device results in the data
being retrieved from the instrument ICN interface board which is automatically updated
every 250 msec. This permits the data to be sent immediately to the host. A request
from a host device for the background (tuning) data of an instrument is acknowledged with
a "wait and acknowledge" response. The instrument ICN interface board retrieves the
requested background data from the instrument and passes it to the processor board.
When all of the data for the deferred request is received by the processor board, it is
immediately transmitted to the host.
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