Nokia 7280 Service Manual
ISSUE 1 11/04
COMPANY CONFIDENTIAL
25
Copyright © 2004 Nokia. All Rights Reserved.
RM-14
7 - System Module
Nokia Customer Care
Connectivity
■
IrDA
RM-14 suppports data connectivity via the Infra Red link. The IR interface is integrated into the
TIKU and the main external component is the IR module. The datarate supported will be
1.152Mbit. The circuit around the module is the same as in Nokia 6230. However, since the IR
window due to design reasons is lifted in relations to the PWB an lightguide has to connect the
IR light and the IR window. Thus the upfiring module TFDU5307 from Vishay has been select-
ed, instead of the one used in Nokia 6230.
TIKU and the main external component is the IR module. The datarate supported will be
1.152Mbit. The circuit around the module is the same as in Nokia 6230. However, since the IR
window due to design reasons is lifted in relations to the PWB an lightguide has to connect the
IR light and the IR window. Thus the upfiring module TFDU5307 from Vishay has been select-
ed, instead of the one used in Nokia 6230.
IrDA Tiku EDGE Interface
This interface receives data from, and transmits data to peripheral equipment. It transforms se-
rial data to parallel data, for the MCU or DSP, and vice versa.
rial data to parallel data, for the MCU or DSP, and vice versa.