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Design Document
Subject: UMC-A21VM User Manual REV: 1.0
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UMC-A21VM User Manual
The document contains proprietary information which is the property of Wistron NeWeb
Corporation and is strictly confidential and shall not be disclosed to others in whole or in
part, reproduced, copied, or used as basic for design, manufacturing or sale of apparatus
without the written permission of Wistron NeWeb Corporation.
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Design Document
Issue Date
Version
Description
2017/11/20
1.0
Initial Issued
2018/01/02
2.0
Contained FCC ID descriptions
Subject: UMC-A21VM User Manual REV: 1.0
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Revision History
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Design Document
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Contents
1. Introduction .......................................................................................................................................... 4
2. Test Setup Configuration ..................................................................................................................... 5
2.1 Power Supply and Debug Console Connection ...................................................................... 5
2.2 Antenna Connection ................................................................................................................. 6
2.3 Hardware Component Introduction ....................................................................................... 7
3. Zigbee Test ............................................................................................................................................ 9
3.1 Install GDM7243 Driver ........................................................................................................... 9
3.2 Confirm the GDM7243 device ................................................................................................. 9
3.3 Open the com port by PuTTy ................................................................................................. 10
3.4 Zigbee Test Command .............................................................................................................11
4. LTE B4/B13 Test ................................................................................................................................. 12
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1. Introduction
This User Manual of Vision CB (Communication Board) module is to describe how to use
the following sections for lab test by specific qualified engineers or technicians.
Furthermore, this module is NOT intended for commercial use but designed as part of
Smart Meter product which mainly provides 4G LTE WAN access and/or Zigbee HAN
access capabilities. For the procedure of CB installation into electric meter and the
operation of CB in assembly factory, that information is described in assembly instruction
document.
FCC Interference Statement
This module complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This module may not cause harmful interference and (2) this module
must accept any interference received, including interference that may cause undesired
operation.
Radiation Exposure Statement
This module complies with FCC radiation exposure limits set forth for an uncontrolled
environment. This module should be installed and operated with minimum distance of
20cm between radiator and human body.
FCC ID
When the A21VM is installed in Vision meter (i.e. host device), the FCC label is placed on
the outside of the Vision meter cover which contains the FCC ID: NKR-CB1GA21VM
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the device.
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USB Debug Port Console
Interface Board
AC-DC 5V Adaptor
DUT
Subject: UMC-A21VM User Manual REV: 1.0
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2. Test Setup Configuration
2.1 Power Supply and Debug Console Connection
Power on Sequence:
I. Connect 12-pin-to-Jig-baord cable
II. Attach AC-DC Adaptor & USB Debug Port Cable
III. Wait for 20 seconds when system ready (See Note 1)
IV. Plug-in Console Port cable
[Caution] Improper power on sequence might lead to system boot-up
failure!
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Subject: UMC-A21VM User Manual REV: 1.0
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2.2 Antenna Connection
Connect to LTE primary antenna
Connect to LTE diversity antenna
Connect to Zigbee antenna
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AC-DC 5V Adaptor
Interface Board
Subject: UMC-A21VM User Manual REV: 1.0
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2.3 Hardware Component Introduction
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Vision CB
LTE Antenna (Main and Diversity)
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3. Zigbee Test
3.1 Install GDM7243 Driver
Install the GDM7243 driver “GDM7243_windows_acm_drivers_installer_v1.1.0.0.zip”
3.2 Confirm the GDM7243 device
Confirm the com port “GCT GDM7243 LTE USB Serial Port (COMX)” in the Device Manager.
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3.3 Open the com port by PuTTy
Install PuTTy for connection to DUT, refer to http://www.putty.org/
Serial Line: COMX ; Speed: 115200 ; Connection Type: Serial
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3.4 Zigbee Test Command
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Frequency(MHz) Efficiency(%) Efficiency(dB) Peak Gain(dB)
746 64.2 -1.9 2.5
751 60.5 -2.2 2.4
756 53.4 -2.7 1.9
777 53.0 -2.8 2.2
782 51.1 -2.9 2.0
787 48.2 -3.2 1.8
1710 42.9 -3.7 1.7
1732 48.8 -3.1 2.6
1755 49.2 -3.1 2.8
2110 41.0 -3.9 0.9
2132 36.8 -4.3 1.0
2155 33.9 -4.7 1.3
LTE Main
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4. LTE B4/B13 Test
It is suggested to use Anritsu MT8820C for RF conductive tests.setc
For LTE radiation tests, the LTE antenna gain lists below.
LTE Main Antenna
Band 13 Peak Gain: 1.5 dBi ~ 2.5 dBi
Band 4 Peak Gain: 0.5 dBi ~ 3.0 dBi
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Frequency(MHz) Efficiency(%) Efficiency(dB) Peak Gain(dB)
746 39.7 -4.0 -0.5
751 41.2 -3.9 -0.5
756 42.6 -3.7 -0.4
777 40.7 -3.9 -1.0
782 42.7 -3.7 -0.8
787 41.9 -3.8 -0.8
1710 55.4 -2.6 4.1
1732 60.4 -2.2 4.6
1755 53.1 -2.7 4.0
2110 50.2 -3.0 3.2
2132 53.6 -2.7 3.7
2155 52.2 -2.8 3.8
LTE Div
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LTE Diversity Antenna
Band 13 Peak Gain: -0.5 dBi ~ 0.0 dBi
Band 4 Peak Gain: 3.0 dBi ~ 4.0 dBi
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