This chapter provides the steps for mounting your 3000 Series in a rack and setting up your hardware connections. It has the following sections.
Before You Begin
What's Next?
Connecting to an Ethernet
Connecting to an Analog Voice Network
Connecting to a DDS Network
Connecting to an E1 Network
Connecting to a T1 Network
Connecting to an SDSL Network
Connecting to an ISDN Line
Connecting to a WAN
Connecting to a PC
Before You Begin
You can order your 3000 Series Secure Gateway Router
either with the modules you want already installed, or you can order the modules
separately and install them yourself. For instructions on installing the optional
modules, see Appendix B.
You have the option of mounting your 3000 Series in a rack. See Mounting the 3000 Series in a Rack on page 9.
Depending on the modules installed in your particular 3000 Series, you need the following cables. With the exception of a console cable to connect a PC to your 3000 Series, these cables are not supplied.
| To connect . . . | You need . . . |
|---|---|
| Analog Voice module | The type of cable you use depends on the interface type that the equipment you connect to supports. Compliance with applicable regulations depends on the use of shielded cables. |
| DDS module | RJ-48S, 8-conductor straight-through cable. |
| Ethernet | Ethernet 10BaseT (Unshielded Twisted Pair) straight-through cable. |
| Fractional E1 module | Cable with an RJ-48C connector (TIA 568B compatible). |
| Fractional T1 module | Cable with an RJ-48C connector (TIA 568B compatible). |
| ISDN module |
RJ-45, 8-conductor straight-through cable. For ISDN S/T modules, you also need an external NT1 device and the appropriate cable to connect the NT1 to the ISDN wall jack. The cable for this connection depends on the NT1 device. |
| SDSL module | Cable with an RJ-48C connector (TIA 568B compatible). |
| To a PC or terminal | Console null-modem cable with adapter to connect a PC or terminal to your gateway router. (Supplied with your 3000 Series.) |
| WAN module |
The appropriate serial WAN cable(s).
The 3000 Series supports only Nx Networks WAN cables. See Selecting a WAN Cable on page 18 for a list of WAN cables. |
Mounting the 3000 Series in a Rack
You can mount the 3000 Series in a rack. The 3000 Series comes with two mounting brackets and four screws. You can attach the brackets to connect either the front of the unit or the back of the unit to the rack.
What's Next?
The following sections show how to connect your gateway router to each type of network.
| To connect to . . . | See page . . . |
|---|---|
| Analog Voice network | |
| DDS network | |
| E1 network | |
| Ethernet | |
| ISDN | |
| SDSL network | |
| T1 network | |
| WAN | |
| PC (Console) |
Connecting to an Ethernet
To connect your 3000 Series to an Ethernet network,
Connecting to an Analog Voice Network
Note:
You cannot connect the analog voice module directly to the external network.
The type of cable you use depends on the interface type that the equipment you connect to supports. For compliance with applicable regulations, you need to use shielded cables.
To connect your 3000 Series to your PBX or voice or fax telephone equipment,
Connecting to a DDS Network
To connect to a leased-line DDS network,
Connecting to an E1 Network
To connect to an E1 network,
Connecting to a T1 Network
To connect to a T1 network,
Connecting to an SDSL Network
To connect to a Digital Subscriber Loop Access Multiplexor (DSLAM),
Connecting to an ISDN Line
How you make the connection from your 3000 Series to an ISDN line depends on whether your ISDN module is an ISDN U or ISDN S/T module. Check the back panel of your gateway router to identify the ISDN module installed.
ISDN U Module
Note:
You can install this module only in slot 3 (D3).
The ISDN U module has a built-in Network Termination (NT1) device. The NT1 provides for a direct connection to the ISDN network. When you use the ISDN U module, you cannot use any other ISDN device on the ISDN line.
To connect your ISDN U module,
CAUTION:
You can also use an RJ-11 cable with a regular analog telephone to connect the 3000 Series to the ISDN wall jack.
Nx Networks discourages using an RJ-11 cable for this purpose, however, because you may inadvertently plug the 3000 Series into a normal telephone jack rather than into an ISDN wall jack. This can damage the 3000 Series.
ISDN S/T Module
Notes:
You can install this module only in slot 3 (D3).
You must connect to the ISDN network via a line isolation unit (NT1 device).
The ISDN S/T module can co-exist with other ISDN equipment using the same ISDN line.
To connect your ISDN S/T module,
Setting the S/T Switch
There is an S/T switch on the ISDN S/T module. You can slide the switch to 0 or 1. Setting the switch to 0 means that no terminating resistor is in use. Setting the switch to 1 means that the ISDN S/T module terminates the ISDN cable with a 100-ohm resistor.
For point-to-point connections (shown in the following figure), set the switch to 1. For all other configurations, consult your NT1 manual for the proper setting. In a point-to-point connection, there is one ISDN device on an ISDN line.
Connecting to a WAN
To connect your 3000 Series to the Internet or another WAN using the standard WAN module, use Point-to-Point Protocol (PPP) over either a dedicated (leased) or a dialup telephone line or use a Frame Relay network.
Selecting a WAN Cable
You must purchase the appropriate cable from a Nx Networks vendor. The type of WAN cable you use depends on the interface type that the equipment you connect to supports.
To connect to a device that has a
Data Communications Equipment (DCE) connector, use a Data Terminal Equipment (DTE) cable.
DTE connector, use a DCE cable.
To be sure that you are using the proper cable to connect your WAN module, check the part number on the cable with the information in the following table.
|
To connect the standard WAN module to . . . | Use cable type . . . | Part Number |
|---|---|---|
| an external asynchronous modem. | RS-232 DTE | P4730-09 |
|
an external synchronous modem, a modem eliminator, or a CSU/DSU. (Whether you use RS-232, V.35, or X.21, depends on which type of communication the equipment you connect to supports.) | RS-232 DTE | P4730-09 |
|
another router that has a DTE connector. (In this case, you must set up the 3000 Series to provide clocking.) (Whether you use RS-232, V.35, or X.21, depends on which type of communication the equipment you connect to supports.) | RS-232 DCE | P4730-12 |
The following three figures show possible DTE/DCE connections.
This figure shows a DTE cable connection to a device with a DCE connector.
This figure shows DTE cable connections to a device (modem eliminator) with a DCE connector.
This figure shows a DCE cable connection to a device with a DTE connector.
Connecting to a PPP WAN
To connect the WAN module to a PPP WAN,
Note:
The 3000 Series support both asynchronous and synchronous modems.
Connecting to a Frame Relay WAN
To connect the WAN module to a Frame Relay WAN,
You can purchase the appropriate cable from Nx Networks. See Selecting
a WAN Cable on page 18. Note:
The 3000 Series works with any of the major CSU/DSU products on the market.
Connecting to a PC
To configure and monitor the 3000 Series through its
console port, you can connect a PC or terminal to the console port. (You can also
configure and monitor the router by connecting to its Ethernet port. See Configuring
Your 3000 Series Secure Gateway Router on page 25.)
To connect a PC or terminal locally to the gateway router, use the 9-pin to 9-pin null modem cable that comes with the 3000 Series and, if needed, the 9-pin to 25-pin adapter. The following figure shows how to connect a PC or terminal directly to the 3000 Series.
