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INfinity 510 Protocol Reference Guide - Sirit

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Chapter 15 - Modem Namespace<br />

modem.protocol.easalarm.control.tx_atten<br />

This variable specifies the transmit attenuation applied during EasAlarm<br />

transmissions. The value is in ddBm so a value of 200 would be an<br />

attenuation of 20 dBm.<br />

Type<br />

Permissions<br />

Data Type<br />

var<br />

guest=r,admin=rw<br />

int<br />

Default 0<br />

Min 0<br />

Max 300<br />

modem.protocol.isob.lock<br />

This function locks the specified byte of an ISO-B tag in the field. The<br />

parameters supported for this function are:<br />

tag_id – Indicates the id of the tag to read. The tag is first singulated<br />

and put in a state for a read operation.<br />

address – Specifies the address (byte offset) of the byte to be locked on<br />

the tag.<br />

antenna (optional) – Indicates antenna on which to execute the<br />

function. If an antenna is not specified, all antennas will be tried until<br />

the function succeeds or no more antennas are available.<br />

The following example locks the byte at address 202 on a tag with id =<br />

0x301122334455667788:<br />

>>> modem.protocol.isob.lock (tag_id =<br />

0x301122334455667788, address = 202)<br />

ok<br />

Type<br />

Permissions<br />

Parameters<br />

function<br />

guest=x,admin=x<br />

tag_id (array)<br />

address (int)<br />

antenna (int)<br />

166 <strong>INfinity</strong> <strong>510</strong> <strong>Protocol</strong> <strong>Reference</strong> <strong>Guide</strong>

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