Your GT 70 Series router allows you to communicate between a LAN and a WAN (ISDN). This chapter describes the step-by-step procedures for setting up the router's network connections. It includes the following topics:
Introduction
Before You Begin
Connecting Your GT 70 Series Router to an Ethernet
Connecting Your GT 70 Series Router to an ISDN Line
Connecting Your GT 70 Series Router to a Console
Plugging in the Power Supply
Powering Up Your GT 70 Series Router
Introduction
The GT 70 Series routers do not require any special environment. They operate at normal room temperature and humidity and can co-exist with the usual computer equipment and electronic devices found in offices, homes, and classrooms. For complete information about the GT 70 Series operating environment, see Appendix B.
The following sections show how to connect your GT 70 Series routers to
Figure 3-1 GT 70 Series U Back Panel
Figure 3-2 GT 70 Series S/T Back Panel
Before You Begin
Before you begin installing your GT 70 Series router, have the following available:
CAUTION:
For your personal safety, follow the safety guidelines in Safety Information in the front of this guide before installing your GT 70 Series router.
CAUTION:
Do not connect this cable to your ISDN port.
Figure 3-3 10BaseT Connection
Using an Ethernet Crossover Cable
If you want to connect a single PC or terminal directly to your GT 70 Series router, you can use an Ethernet crossover cable. For pinout information, see Appendix C.
CAUTION:
Do not connect this cable to your ISDN port.
Figure 3-4 Crossover Cable Connection
Connecting Your GT 70 Series Router to an ISDN Line
How you make the connection from your router to an ISDN line depends on whether you have a GT 70 Series U or S/T model.
U Model
CAUTION:
An RJ-11 cable, used with a regular telephone, can also be used to connect the GT 70 Series router to the wall jack. OpenROUTE Networks discourages this because you may inadvertently plug the router into a normal telephone jack. This can damage the router.
Note: Because the S/T model does not contain an internal NT1 device, you need an external NT1 device to attach to your ISDN line. A typical NT1 device looks like a small modem and has S/T port(s) and a U interface on the back of it. All the ports use RJ-45 jacks.
For point-to-point connections (shown in Figure 3-5), set the switch to 100. For all other configurations, consult your NT1 device manual for the proper setting. In a point-to-point connection, there is one ISDN device on an ISDN line.
Figure 3-5 Point-to-point Connection
Connecting Your GT 70 Series Router to a Console
To set up the network interface for your router, you must initially configure your router from a console (a PC or terminal) connected to the router's console port.
Use the supplied console cable and 9-pin to 25-pin console adapter to directly connect a local PC or terminal to the console port. If your PC or terminal has a 9-pin connector, you do not need the adapter.
To connect your router to a remote PC or terminal, you need to use an OpenROUTE Networks-orderable 9-pin to 25-pin straight-through cable,
P/N 12-003110-00.
Figure 3-6 shows three ways to connect a PC to your GT 70 Series router. A description of each cable and the adapter follows Figure 3-6.
Figure 3-6 Console Connections
Plugging in the Power Supply
There is a +5V connector on the back panel of your GT 70 Series router. Follow these steps to connect the OpenROUTE Networks-supplied power supply (P/N 40-000200-00):
Figure 3-7 Connecting the Power Supply
During POST, the OK light on the front of your router flashes at approximately three times per second. Following a successful POST, the router starts to boot, and the OK light flashes approximately every second. If POST detects a catastrophic failure, the OK light turns off and the router powerup sequence stops. If POST detects a noncatastrophic failure, the router continues to boot and reports a diagnostic failure code on the attached console. If POST fails, restart the powerup sequence. If the router continues to fail, contact OpenROUTE Networks customer service. For more information about the status lights, see Monitoring the Status Lights in Chapter 5.