Pinout Specifications; Pin Availability By Build - Multitech SocketModem MTSMC-L4E1 Manual

SPECIFICATIONS
Pin Signal
Name
J28 USB DN
J41 GND
J58 -LED LINK
J61 VCC
J63 GND

Pinout Specifications

Pin Signal Name
J24 –RESET
J25 USB VBUS
J26 GND
J27 USB DP
J28 USB DN
J33 –RTS
J34 –RXD
J35 –TXD
J36 –RI
J37 –DSR
J38 –CTS
J39 –DCD
J40 –DTR
J41 GND
J58 –LED LINK
J61 VCC
J63 GND
1
A hyphen (-) indicates a range of acceptable logic levels.

Pin Availability by Build

Pin
J24
J25
J26
12
VIL Min VIL Max
-- 0.8
-- --
-- --
-- --
-- --
Logic Level Voltage
3.3 – 5.0
3.3 – 5.0
GND
3.3
3.3
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
GND
3.3
5.0
GND
Signal Name
–RESET
USB VBUS
GND
VIH Min VIH Max VOL Min
2 -- --
-- -- --
-- -- 0
-- -- --
-- -- --
1
In/Out
I
I
GND
I/O
I/O
I
O
I
O
O
O
O
I
GND
O
PWR
GND
Serial Only USB Only
X X
X
X X
®
SocketModem
VOL Max VOH Min VOH Max
0.3 2.8
-- --
0.45 2.85
-- --
-- --
Description
Device reset (active low)
USB power supply input
Ground
USB data
USB data
Request to send (active low)
Received data (active low)
Transmitted data (active low)
Ring indicator (active low)
Data set ready (active low)
Clear to send (active low)
Data carrier detect (active low)
Data terminal ready (active low)
Ground
Link status (active low, can sink up to
150mA)
DC input power
Ground
Cell MTSMC-L4E1 Device Guide for Europe
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3.3
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