Integration Manual

Table Of Contents
TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R26 System description
Page 20 of 162
Function
Pin Name
Pin No
I/O
Description
Remarks
USB
USB_D-
36
I/O
USB Data Line D-
USB interface for AT commands, data communication,
FOAT, FW update by u-blox EasyFlash tool and diagnostic.
90 nominal differential impedance (Z
0
)
30 nominal common mode impedance (Z
CM
)
Pull-up or pull-down resistors and external series resistors
as required by the USB 2.0 specifications [7] are part of the
USB pad driver and need not be provided externally.
See section 1.9.1 for functional description.
See section 2.6.1 for external circuit design-in.
USB_D+
38
I/O
USB Data Line D+
USB interface for AT commands, data communication,
FOAT, FW update by u-blox EasyFlash tool and diagnostic.
90 nominal differential impedance (Z
0
)
30 nominal common mode impedance (Z
CM
)
Pull-up or pull-down resistors and external series resistors
as required by the USB 2.0 specifications [7] are part of the
USB pad driver and need not be provided externally.
See section 1.9.1 for functional description.
See section 2.6.1 for external circuit design-in.
Specific
Signals
LED_WWAN#
42
O
LED indicator output
Open drain active low output.
See section 1.12 for functional description.
See section 2.9 for external circuit design-in.
W_DISABLE#
20
I
Wireless radio
disable input
Internal 22 k pull-up to 3.3Vaux.
See section 1.12 for functional description.
See section 2.9 for external circuit design-in.
Not
Connected
NC
1, 3, 5-7, 11,
13, 16, 17, 19,
23, 25, 28,
30-33, 44-46,
47-49, 51
N/A
Not connected
Internally not connected.
See section 1.14 for the description.
Table 4: MPCI-L2 series module pin definition, grouped by function