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Intel® NetStructureTMZT 7102 Chassis Management Module
Hardware Specifications
2.16Telco Alarm Signal
2.16.1Alarm Relays
The ZT 7102’s alarm relay circuits are capable of carrying 60 VDC or 1 A, with a maximum rating of 30 VAC.
2.16.2Opto Inputs
The ZT 7102 accepts timed pulse inputs for clearing Minor and Major alarm states (there is no reset for the Critical state). Reset is accomplished by asserting a voltage differential from 3.3 V to 48 V for between 200 and 300 ms. The acceptable voltage range is from 0 to 48 VDC continuous (handles up to 60 VDC at a 50 percent duty cycle). The current drawn by a reset input should not exceed 12 mA.
Caution: Do not apply more than 60 V (maximum) to any pin or combination of pins on the CMM's J7 Telco Alarm connector.
2.17Real Time Clock
A Dallas Semiconductor* DS1307 Serial
The
To set the
setdate 'Thu Apr 01 09:04:29 PST 2004'
The above command would set the time and date to the following:
Thu Apr 1 17:04:29 UTC 2004
Note: The
2.18Network Time Synchronization
The CMM supports the RFC 868 Time Protocol. This allows the CMM to be configured to retrieve the date and time from a server over a TCP/IP network using the rdate command. To properly configure time synchronization using the RFC 868 Time Protocol, follow the steps below.
Enable RFC 868 Time Protocol on a Linux/Unix Host (server):
•In general this depends upon the OS and version. Please consult your OS documentation.
•The easiest way to enable this service is to use the OS GUI to enable the "time" server. This is part of inetd/xinetd.
34 | Technical Product Specification |