NMX920 OEM Integrators Guide
Page 6 of 21
5. Physical Requirements
5.1. Dimensions
The overall dimensions of the NMX920 are provided below. It should be noted that
the NMX920 can be ordered with a variety of termination options. It is the
integrator’s responsibility to specify these options as required and maintain
sufficient space around the modem for cable access, if required.
The integrator is also required to maintain adequate ventilation about the NMX920.
The amount of ventilation required will be dependent on the worst case transmit
duty cycle that could be expected from the wireless application. Failure to provide
adequate ventilation will not damage the NMX920, but if power amplifier
temperature exceeds safe operating limits, the NMX920 will perform a controlled
shutdown.
MMCX
RF Connector
Locating pin x 3
NMX920
102 mm
System
Interface
30 Way
(2 x 15)
55 mm
12 mm High
1
29
30
2
5.2. System Interface
The System Interface port on the NMX920 provides power, serial communication
and status indicators between the OEM device and the modem. In addition to the
user signals, there are a number of signals that are used for manufacturing
purposes. Only the signals listed below may be used for system interconnection.
All other signals should be ‘no connects’.
The standard system interface connector is a 2 x 15 x 2 mm pitch connector. The
NMX920 may be ordered with this connector mounted on the top for cable
interface, or underneath for board to board connection. Refer to the Ordering
Information.
The NMX920 is available with either a RS-232 serial interface, or a TTL (5V) serial
interface. This is an order time option, and is not retrofitable in the field. Refer to
the Ordering Information
