Global Cache GC-100-12 User manual

QUICK START GUIDE
Global Caché
Home Network Adapter
GC-100-12/GC-100-18
The GC-100-12 and GC-100-18 Home Network Adapters connect diverse and previously unconnected
devices and appliances in a network-based home. Using many commonly needed controls and sensor
inputs in one box, the GC-100 provides an easy way for controlling real-world devices, reducing the time
and complexity of an installation by eliminating piggybacked components and multiple power supplies. By
simply sending commands over the network, your audio/visual equipment is turned to the proper volume
by infrared (IR), shades are lowered with relays, and your favorite DVD is selected through serial
communications; and all started with the push of a button. As a result of using open standards (for
example, TCP/IP), any networked device, such as your PC, can send and retrieve GC-100 data. With the
GC-100, a variety of devices can be connected to control and monitor the environment over a network or
even the Internet.
The GC-100 is designed to work with many of the popular home control software packages. These
packages contain software drivers needed for the proper operation of the GC-100, as well as, an easy-to-
use interface for configuring your automated living environment. It is required that such a package be
employed when using the GC-100 product family.
Getting started is simple. All it requires is connecting power, configuring the unit, and attaching cables.
This guide provides a step-by-step method to get you up and running quickly and easily with a discussion
of each connector's pin out, web page configuration, and specification.
Power is supplied by an AC wall adapter rated for 12V DC@500mA. Shortly after applying power all the
IR indicators will momentarily turn on then off signifying completion of the self-test. The GC-100 is ready
for operation after the power (PWR) indicator is on and not blinking which signifies a self-test fault.
LAN connection is used for all communication over the network and for configuring the GC-100.
Accessing the GC-100 is initially achieved using its default IP address 192.168.1.70. The best method for
configuring the GC-100 is to communicate over an isolated network, directly to a networked PC utilizing a
cross-over LAN cable or an isolated hub with standard LAN cables. The PC must also be on the same
network with an address such as 192.168.1.102. The LINK indicator on the LAN connector will light when
the cabling is plugged in properly. After establishing a link, the GC-100's internal web pages are
accessible from a browser at address:
http:// 192.168.1.70/
A suitable static IP address can now be entered for your network environment, making sure the GC-100's
IP address is outside the network's DHCP partition, if DHCP is used. In addition the default gateway
address and subnet mask will need to be set before installing the GC-100. Once the GC-100 is on your
network, further configuration can be accomplished through the new IP address.
GC-100 Home Network Adapter 2398 Bentley Ridge Drive
Effective: May 12, 2003 San Jose, California 95138
PN: 030416-01 ver. 3 Phone: [phone]
1 of 4 Fax: [phone]
Quick Start Guide GC-100-12/18 www.globalcache.com
Information subject to change without notice.

Except for serial, all data commands are sent over TCP/IP Port 4998. This includes infrared, sensor, and
relay commands. Each serial connection has a unique port number for communication, starting with Port
4999 for serial 1, Port 5000 for serial 2 and so on.
Relay IndicatorIR and Sensor
Serial
LAN
Power
GC-100-12 Front Panel
Factory defaults can be set during power up by connecting pins 7 and 2 on connector serial 1 with a
wrap back connector or a flat bladed screw driver. (Refer to the Serial DB9 Connector diagram for pin
locations.) IR indicator 1 will blink on then off, signifying the GC-100 has been set to factory defaults.
Web pages are used to configure the GC-100 for proper operation in a particular environment.
Parameters are selected by pull down menus and put in effect after executing "Apply." The GC-100
resets, blinking all indicators on then off, to complete the update.
Serial communication utilizes a male (9 pin) DB9 connector with active signals on the pins shown in the
diagram. Unfortunately, serial standards are not always adhered to and special attention must be given
when connecting serial cables. There are three areas that must be correct for proper serial
communication: cable configuration; baud rate (communication speed); and, if used, flow control signals
must be asserted (greater than +3V). At a minimum, to send and receive serial data TxD, RxD, and Gnd
must be connected to the other serial device. These signal locations will depend on the mating
connector’s type and gender. Typically, communications can be established by a trial and error method of
swapping the TxD and RxD lines. (Incorrect wiring will not harm RS232 drivers.) Also, flow control must
be disabled or asserted for communications to start. If erroneous characters are transmitted, it is usually
an indication of an incorrect baud rate setting.
Serial DB9 Male Connector
Pin 5
+12V
DT
R
Pin 2
Pin 7
Pin 3
Pin 8
Pin 4
CTS
RxD
RTS
TxD
There are two types of flow control: RTS/CTS for data flow and DTR/DSR for modem control. The GC-
100 does not use modem flow control and will always assert the DTR line and ignore DSR. When data
flow control is used, the GC-100 will stop its transmission when the CTS signal is asserted by the other
device. When receiving data the GC-100 may assert RTS to signal the other device to stop its
transmission. In a typical home control environment, serial devices usually communicate with short and
infrequent commands. Hence, some serial devices may not have flow control signals. This is usually not a
concern, since a serial input buffer is much larger (256 bytes) than the transmitted data commands. In
these cases, the GC-100 flow control should be disabled. However, to avoid potential character loss, it is
GC-100 Home Network Adapter 2398 Bentley Ridge Drive
Effective: May 12, 2003 San Jose, California 95138
PN: 030416-01 ver. 3 Phone: [phone]
2 of 4 Fax: [phone]
Quick Start Guide GC-100-12/18 www.globalcache.com
Information subject to change without notice.

a good rule to use flow control when it is available on serial devices. The GC-100 performs flow control by
asserting RTS when the input buffer goes beyond 180 bytes, and de-asserting RTS when it falls below 64
bytes.
The serial device attaching to the GC-100 will most likely employ a DB9 or 25 pin connector. Below is the
standard wiring configuration for a serial cable. It is not guaranteed that the standard has been followed,
but it is a good starting place. Also, if the TxD and RxD pins are swapped for proper operation, then most
likely RTS/CTS and DTR should be swapped as well, for proper flow control.
GC-100 DB9 DB9 DB25 DB25
DB9 male male female male female
Data
RxD 2 3 2 3 2
TxD 3 2 3 2 3
Gnd 5 5 5 7 7
Data Flow Control
RTS 7 8 7 5 4
CTS 8 7 8 4 5
Modem Controls
DTR 4 6 4 6 20
DSR 6 ignored by the GC-100
IR output and sensor input share a common connector and indicator on the GC-100. Each 3.5mm
audio connector is independently configured using the internal web pages. Each connector has three
contacts configured as either an infrared (IR) output or sensor input, as shown below.
When configured as an output the indicator will blink as an IR command is transmitted. When functioning
as a sensor, the indicator is "on" when a positive input or no connection is present. The maximum sensor
input voltage is ±24V, with an "on" indication for voltages greater than 2.5V and "off" when less than 0.8V
with an input impedance of ~100KΩ.
IR Outpu
t
Sensor Input
+5V
Gnd
Gn
d
100KΩ
10KΩ
n/
a
Sensor
470Ω
+5V
IR
3.5mm Audio Connector
When selected, IR outputs can be transmitted without their carrier frequency, as waveform envelops. This
is used for direct audio/video inputs, such as Control-S, or for modulating RF signals.
Sensor Notifications is used to automatically signal changes in sensor state. Any connector configured
as an input will send notification unless this feature is disabled.
GC-100 Home Network Adapter 2398 Bentley Ridge Drive
Effective: May 12, 2003 San Jose, California 95138
PN: 030416-01 ver. 3 Phone: [phone]
3 of 4 Fax: [phone]
Quick Start Guide GC-100-12/18 www.globalcache.com
Information subject to change without notice.

Relays are used for switching devices on and off. The contacts are "normally open" and rated for 500mA
at 24V (DC or AC). The mating connectors use screw terminals to attach wiring. Relay contacts are non-
directional and wires may be connected in any order.
Relay contacts are protected against transients greater than 150 volts caused by switching inductive
loads, such as motor and relays. The transient voltage suppressor (TVS) eliminates contact arching by
clipping positive and negative voltage spikes that exceed 150 volts.
1
Rating
24V@500mA
2
Relay Terminal Block Connector
Support: [email protected]
Sales: [email protected]
General Info: [e-mail]
GC-100 Home Network Adapter 2398 Bentley Ridge Drive
Effective: May 12, 2003 San Jose, California 95138
PN: 030416-01 ver. 3 Phone: [phone]
4 of 4 Fax: [phone]
Quick Start Guide GC-100-12/18 www.globalcache.com
Information subject to change without notice.
Copyright ©2003 Global Caché, Inc. All rights reserved.