User's Manual

Confidential
INTERFACE DESCRIPT
15(31)
Document number Revision
1/155 19-KRD 104 1025 Uen PA4
4 System Interface
4.1 Overview
4.1.1 System Connector
All of the systems interface signals flow through a single connector; power, ground, data,
cotrol, status and GPIO.
Electrical connections to the modem are made through a 24 pin low insertion force (LIF)
vertical SMT mount FFC or FPC cable receptor. The connector is a single sided contact
type, for example the AVX Elco part 04-6244-024-011-800.
Connector type NON-ZIF (LIF) ST SMT
Contact Single
Profile Height (mm) 4.10
Number of Contacts 24
Current Rating 0.4A Max.
Voltage Rating 50V Max.
Dielectric withstanding voltage 200Vrms
Contact Material Phosphor bronze Tin-Plated*
Insulator material Heat resistant plastic
Operating temperature 40ºC~+85ºC
FFC/FPC thickness 0.3±0.05
* Tin-Lead plated on non Pb-free version
Table 4.1-1 Connector Characteristics
DATUM MARK
(DATUM PIN)
DETAIL A
PIN 1
PIN 24
DETAIL A
0.2 ±0.05
0.5 TYP
11.5
12.6
DATUM MARK
(DATUM PIN)
DETAIL A
PIN 1
PIN 24
DETAIL A
0.2 ±0.05
0.5 TYP
11.5
12.6
Figure 4.1-1 Vertical Connector Detail