User's Manual

110 DECT Messenger Customer Engineer Manual

Figure 30

SET/RESET Alarm Structure

The input modules eCAP, eAPI, and eIO can generate a set/reset

command. (eIO set/reset is explained in more detail later on in this

document.) An acknowledgment from a device does not clear the

alarm condition on that device in the database. Therefore, even if the

call on the device is answered, the alarm is not reset. As long as the

eKERNEL does not receive a reset from the Input Module, the alarm

is repeated on the device with a time interval that you must have

specified in the eCONFIG.

Figure 31

Alarm processing

The way an alarm is processed in an LRMS (E2) DECT Handset depends

on the Acknowledge/Negative Acknowledge (ACK/NAK) structure, as

shown in Figure 31 "Alarm processing" (page 110).

• ACK/NAK

A message can be sent to an LRMS (E2) DECT handset as a Normal

message, or as an Urgent message. After a message is sent as a

Normal message, the DMC sends an Acknowledge at the moment

that the message arrives at the handset. No manual confirmation is

required. If the message was sent as a sent message (reset after

Nortel Communication Server 1000

DECT Messenger Fundamentals

NN43120-120 02.01

11 May 2009