Omron manual DDAA1000/SRM User Guide RF Xmit Power, Power Transmit Settings, Remote Security

DDAA1000/SRM User Guide

(5) RF Xmit Power

The DDAA1000/SRM offers users the ability to modify the Transmission Power of the radio modem. There are 10 power settings available (1-10) which are roughly linear. Therefore a setting of 10 is full power (or 1 Watt) and 1 is 10% power (or 100 mw). The following guidelines should be followed when setting the RF Transmission Power:

Table 6: Power Transmit Settings

Setting	Power Level	Used When
1-3	Low	Pair of pairs of radio modems operating within the
		same or adjoning rooms.
4-6	Medium	More than one pair of radio modems operating
		withi the same facility.
7-10	Full	Normal operation extending beyond a facility.

(6) Remote Security

With option 6 the user may disable the radio modem’s security so it will accept a call from any other DDAA1000/SRM. The default setting is 0 where security is enforced (the caller’s call book number must be in the remote’s Call Book). With a setting of 1 security is disabled.

As mentioned in mode 6, Remote Security must be set to 1 when the unit is operating in a point-to-point system where it may need to accept calls from more than 10 different DDAA1000/SRMs. However, it is important to note that when Remote Security is set to 1, the radio modem will accept calls from any other DDAA1000/SRM, and additional system security measures should be taken to prevent unauthorized access.

(7)RTS to CTS

For DDAA1000/DD1000 use the user should not change this parameter. Leave it disabled (0).

(8)Retry Time Out

The Retry Time Out parameter allows the use to determine when a remote will drop a connection to a master or repeater in multi-point mode. The default setting is 255, meaning that if one packet in 255 from the master is sent successfully to the remote, it will maintain a link. The lowest setting is 8, at which a remote will drop a connection much faster.

The Retry Time Out parameter is useful when a multi-point system is used with a moving master or remotes. As the link gets weaker, a lower setting will allow a remote to drop it’s link and search for a stronger connection.

While intended primarily for multi-point systems, the Retry Time Out parameter may also be modified in point-to-point systems. In point-to-point mode the Retry Time Out should not be set to a value of less than 151.

PN 161-09981-002C

rev 8/04

DATA-LINC GROUP 31