Description Of The 50-Pin Double-Row Connector - FALCOM I56 Hardware Description

I65/I56I HARDWARE DESCRIPTION

5.2 Description of the 50-pin double-row connector

Please note that the reference voltages listed in table 7 are the values measured
directly on the I56/I56i module. I56/I56i module is equipped with a 50-pin
board-to-board connector that connects to the cellular application platform.
The Samtec (SMT) board-to-board connector is a 50-pin double-row
receptacle. The names and the positions of the pins can be seen from figure 3
below which shows the bottom view of I56/I56i.
This interface incorporates several sub-interfaces described in chapters below.
To avoid any mistake on structured table below, note that, all sub-interfaces
included on the board-to-board connector are grouped, sequencing is not taken
into account.
Figure 3: Pin assignment on the 50-pin connector (bottom view on I56/I56i)
PIN GSM Modem
1
2
6 GND
21
24
3
VC5
4
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I/O DESCRIPTION
Negative operating
voltage (grounds).
One of these pins can also
-
be used as SIMGND pin
for an external SIM
interface.
Power supply input. 5
VC5 pins to be connected
in parallel. 5 GND pins to
be connected in parallel.
The power supply must be
able to meet the
I requirements of current
consumption in a Tx burst
(up to 2 A). Sending with
two Timeslots doubles the
duration of current pulses
to 1154 µs (every
4.616 ms)!
VERSION 1.00
LEVEL
0 V
= +5 V ±10 %
V
I
I < 2 A (during Tx burst)
max
1 x Tx, peak current 577 µs
every 4.616 ms
2 x Tx, peak current
1154 µs every 4.616 ms
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