RM024 – RAMP Wireless Module

Datasheet

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/ramp

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Parameter

Server/Client

Min.

Typ.

Max.

Notes

Power on to In Range

Client only

13 ms

600 ms

1700 ms

Maximum time assuming all

beacons are heard; RF

interference could extend the

maximum time indefinitely.

Hop Period In Range

13.19 ms

Hop Period Out of

Range

Client only

38.4 ms

Reset Pulse

250 ms

PWM Output Period

Restore Default

EEPROM Command

10 ms

38 ms

Restore command also initiates

a soft reset, so monitoring CTS

is the best indication of a

completed command.

Non-specific AT

Command

1 ms

10 ms

Some AT Commands could wait

indefinitely for a response.

Write Flash

For FW upgrade.

Read Flash

1.8 RF Hop Frame

The RM024 hops every 13.19 milliseconds and can be configured for two different RF data rates to provide

options for range or throughput. During each hop, the RM024 reserves a certain amount of time for overhead

such as the synchronization beacon, internal messaging, and user data transmission. The diagrams below outline

the various transmissions that occur during a hop. These transmissions are transparent to the user sending data,

but may be useful for applications that require critical timing. User data is only transmitted during the data slots

and after the Interface Timeout or RF Packet Size criteria has been met. Data transmission only begins at the

beginning of a data slot. When configured for Full Duplex, data slot 1 is reserved for the server and data slot 2 is

shared by all clients for transmissions.