SIIG AV-GM03K3-S1 User manual

RS-232 over CAT5 Extender
P/N: AV-GM03K3-S1

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Safety and Notice
The AV-GM03K3-S1 has been tested for conformance to safety regulations and requirements,
and has been certified for international use. However, like all electronic equipments, the
AV-GM03K3-S1 should be used with care. Please read and follow the safety instructions to protect
yourself from possible injury and to minimize the risk of damage to the unit.
Follow all instructions and warnings marked on this unit.
Do not attempt to service this unit yourself, except where explained in this manual.
Provide proper ventilation and air circulation and do not use near water.
Keep objects that might damage the device and assure that the placement of this unit is on a
stable surface.
Use only the power adapter and power cords and connection cables designed for this unit.
Do not use liquid or aerosol cleaners to clean this unit. Always unplug the power to the device
before cleaning.

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INTRODUCTION
With only one CAT-5e cable, the CV-87 series lets you extend RS-232 signal to cover the
distance up to 1,000m (1,100 yards). The devices are composed of a transmitter and a receiver. The
transmitter is installed near the serial signal source, and the receiver is placed near the destined
device. For AV-GM03K3-S1, the RX and TX relationship between source and destination units are
adjustable through the settings of DIP switches. After finishing the setup, the serial connection has a
fixed communication channel between local and remote sites. For the receiver, the same source unit
as transmitter, but on the receiving side, the receivers can be cascadable up to 32 units. This
structure allows users to control tens of remote units through single Cat-5 cable. Typical applications
include security alarm system, POS system, dumb terminal, etc.
FEATURES
Sends RS-232 data up to 1,000m (1,100 yds)
Real time pure hardware solution
Extra RJ-45 for cascading
Compact size
Transmitter offers cascading ability; the remote units can be cascaded up to 32 devices
PACKAGE CONTENTS
1x AV-GM03K3-S1 [TX & RX]
2x 5V power adapter
1x User Manual

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SPECIFICATIONS
Model Name
AV-GM03K3-S1 (TX)
AV-GM03K3-S1 (RX)
Technical
TX
RX
TX
RX
Role of usage
Transmitter [TX]
Receiver [RX]
Transmitter [TX]
Receiver [RX]
Transmission length
Up to 1,000m (1,100yds) [CAT5e]
Baud rate
Up to 57.6kbps in cascade mode
Input
1x RS-232
1x RJ-45
1x RS-232
1x RJ-45
Output
1x RJ-45
1x RS-232
1x RJ-45
1x RS-232
1x RJ-45
RS-232 connector
DE-9 [9-pin D-sub female]
RJ-45 connector
WE/SS 8P8C with 2 LED indicators
DIP switch
1-pin DIP switch for master/slave connection mode
Rotary control switch
None
8-level rotary switch
Mechanical
TX
RX
Housing
Metal case
Dimensio
ns
[L x W x
H]
Model
64 x 48 x 26mm [2.5" x 1.9" x 1" ]
64 x 48 x 35mm [2.5" x 1.9" x 1.4"]
Packag
e
270 x 175 x 80mm [10.6" x 6.9" x 3.1"]
Carton
450 x 370 x 300mm [1'6" x 1'3" x 11.8"]
Weight
Model
174g [6.1oz]
174g [6.1oz]
Packag
e
750g [26.4oz]
750g [26.4oz]
Fixedness
Wall-mounting case upon request
Power supply
5V 2A DC
Power consumption
1 Watt [max]
Operation
temperature
0~40C [32~104F]
Storage temperature
-20~60C [-4~140F]
Relative humidity
20~90% RH [no condensation]

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1. Connect your serial RS-232 source to the transmitting unit.
2. Connect your serial receiver to the receiving unit.
3. Connect your CAT-5/5e/6 cable between the transmitting and receiving units.
4. Make sure your CAT-5/5e/6 cable is tightly connected and not loose.
5. Plug in 5V DC power cord to the power jack of the receiving unit(s).
6. Plug in 5V DC power cord to the power jack of the transmitting unit.
Hardware Installation

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DIP SWITCH
DIP SWITCH Position
AV-GM03K3-S1; point-to-point connection
Master
Slave

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1.) Move pin to “ON”position.
1.) Move pin to “OFF”position.
Master
MASTER
1.) Move pin to “ON”position.
1.) Move pin to “ON”position.
Point-to-multipoint connection
Master
Slave
1.) Move pin to “ON”position.
1.) Move pin to “OFF”position.
Slave
Slave
1.) Move pin to “OFF”position.
1.) Move pin to “OFF”position.

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Serial Command
In order to control the remote units, AV-GM03K3-S1 offers a set of serial command to setup the
baud rate, ID, and enable of the feedback from the remote units.
Table 1 —Serial Command Protocol
Byte #
Content
Description
Byte 0
0x7E
Header
Byte 1
0xB9
Header
Byte 2
0X5D
Header
Byte 3
“assigned ID shown as hex
number”
Defined by rotary dial
NOTICE
1. AV-GM03K3-S1 is initially with the baud rate 9600 bps. Therefore, if users would like to
establish a successful communication channel or change the baud rate correctly, the initial
communication rate should be 9600 bps.Turning off and on receiving units will bring the baud
rate back to 9600Kbps! While cascade bit is set to OFF, the baud rate of communication is
solely dependent upon the capability of RS-232 sender and receiver on both sides.
Performance Guide for HDMI over LAN Cable Transmission
Performance rating
Type of LAN cable
Wiring
Shielding
CAT5
CAT5e
CAT6
Solid
Unshielded
(UTP)



Shielded (STP)



Stranded
Unshielded
(UTP)



Shielded (STP)



Termination
Please use EIA/TIA-568-B termination (T568B) at any time

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WARRANTY
The SELLER warrants the AV-GM03K3-S1 to be free from defects in the material and
workmanship for 3 years from the date of purchase from the SELLER or an authorized dealer.
Should this product fail to be in good working order within 3 years warranty period, The SELLER, at
its option, repair or replace the unit, provided that the unit has not been subjected to accident,
disaster, abuse or any unauthorized modifications including static discharge and power surges.
Unit that fails under conditions other than those covered will be repaired at the current price of
parts and labor in effect at the time of repair. Such repairs are warranted for 90 days from the day of
reshipment to the BUYER. If the unit is delivered by mail, customers agree to insure the unit or
assume the risk of loss or damage in transit. Under no circumstances will a unit be accepted without
a return authorization number.
The warranty is in lieu of all other warranties expressed or implied, including without limitations,
any other implied warranty or fitness or merchantability for any particular purpose, all of which are
expressly disclaimed.
Proof of sale may be required in order to claim warranty. Customers outside Taiwan are
responsible for shipping charges to and from the SELLER. Cables are limited to a 30 day warranty
and cable must be free from any markings, scratches, and neatly coiled.
The content of this manual has been carefully checked and is believed to be accurate. However,
The SELLER assumes no responsibility for any inaccuracies that may be contained in this manual.
The SELLER will NOT be liable for direct, indirect, incidental, special, or consequential damages
resulting from any defect or omission in this manual, even if advised of the possibility of such
damages. Also, the technical information contained herein regarding the CV-87P/CV-87C features
and specifications is subject to change without further notice.
April, 2018
Support
For more info or tech support
http://www.siig.com/support