10 Chapter3 - Network Installation
Connecting the Router to the Ethernet
Ifyour twisted-pair hub is already in place, you can connectthe router
toan activ enetwor kwi thoutint errupting network activity. The router
must be powered off.
Connectingto Twisted-Pair Ethernet
Beforeconnecting the router to twisted-pair cabling you need an
unshieldedtwisted-pair cable that is already connectedto your
10BaseT-compatibletwisted-pair hub.
Toconnect the router to the twisted-pair network, simply plug the
twisted-paircab le into the RJ-45 Ethernet connector on the back of the
unit.
Connecting the Router to a T1 Line
Toconnect the router to the T1 line, you need a four wire jumper cable
thatis already connected to the RJ-45 jack which was installed by your
telephonecompany. Therouter must be powered off. Simplyplugthe
jumper cable into the RJ-45 WAN 0 connector on the back of the
MicroRouter 1250i.
Connecting a Line Device to the Secondary Port
TheMicroRouter 1250i supports lower speed synchronous/asynchro-
nousoperation over a secondary RS-232 connector(WAN 1). Thisport
independently supports the PPP and Frame Relay link protocols.
ConnectingDevices to the RS-232C Interface
Thisinterface -- WAN 1 -- can be used to connect to synchronousor
asynchronousline communications devices at rates up to 256Kbps
(sync),or 230.4 Kbps (async). Examples include modems, leased or
switched 56KCSU/DS U’s,and ISDN Terminal Adapters.
Note: Ifconnecting to a synchronous device such as a CSU/DSU,
therouter must first beco nfiguredfor synchronous operation before
connectingto the device. See Chapter 6 - Basic Configuration Guide
forconfiguration information.
Youmay select either dial-on-demand, always up (i.e., redial if down),
orleased line operation. This interface may also be set to receive ISDN
or switched-56 incoming calls.
Toconnect a device, first make sure that both units are powered off.
Then,simply connect the supplied RS-232 cable between the router and
thedevice.