Manual
SENDTEK
WM123
Users Manual
Pin Assignments
Pin Descriptions
Symbol
Pin
Description
+12V IN
1
+12V power supply
GND
2,3
Ground pot
UART RX
4
UART Data input (TTL level)
NC
5,6
No Connection
UART TX
7
UART Data output (TTL level)
WLAN_LED
8
WLAN activity LED output (Active Low)
TP_RX+
9
Media-dependent interface transmitter Rx positive
TP_RX-
11
Media-dependent interface transmitter Rx negative
TP_TX+
10
Media-dependent interface transmitter Tx positive
TP_TX-
12
Media-dependent interface transmitter Tx negative
Federal Communications Commission (FCC) Statement
You are cautioned that changes or modifications not expressly approved by the part
responsible for compliance could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC rules. These limits are designed to
provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
1) this device may not cause harmful interference, and
2) this device must accept any interference received, including interference that may
cause undesired operation of the device.
The final end product must be labeled in a visible area with the following: “Contains
FCC ID: 2AAM7-WM123”.
The OEM integrator has to be aware not to provide information to the end user
regarding how to install or remove this RF module in the user’s manual of the end
product which integrates this module. The end user manual shall include all required
regulatory information/warning as show in this manual.
(1) the module should not installed and operated simultaneously with other radios
except additional RF exposure was evaluated and meeting FCC requirement for
simultaneously transmission.
(2) Host manual should bear below statement in manual.
This equipment should be installed and operated with a minimum distance of 20
centimeters between the radiator and your body
(3) Antenna used should be limited to same type with equal or lesser antenna gain.