Verilink C100 (880-502893-001) Product Manual - Manual (Page 96)

Sample Applications
B-2 Verilink C100 and C150 T1/FT1 CSU/DSU 6/15/99
C100 T-1 Using V.35 Interfaces In Router Application
Figure B-1 depicts a typical router application using the CSU/DSU’s to
connect two LANs together over a Fractional T-1 facility. The routers
have V.35 interfaces and operate at 384000 bps.
Figure B-1 illustrates the switch settings for the near and far ends.
Switch pack 4, position 2 is Off and Switch pack 4 position 3 is On in
both units to make the interfaces V.35 (they could be programmed
differently at each end). Switch pack 4 position 4 in both units are On
enabling all selected DS0’s to be 64000 bps. Switch pack 5 positions 1
through 6 are On (6 DS0s times 64000 bps = 384000). Care must be
taken to ensure the DS0s selected are the same in both units and that
they match the DS0’s provisioned by the Fractional T-1 carrier.
Timing is left in the default setting of Network provides timing with
Switch pack 2 positions 7 and 8 Off since the units are connected to a
carrier-provided T-1 Network.
Table B-1 illustrates a typical application using the T-1 CSU/DSUs
connecting two LANs together over a Fractional T-1 facility.
The Off position of the DIP switch is the rocker arm of the switch in its
lowest position (down) on the side of the switch pack closest to the
front panel.
Figure B-1 Example: C100/C150 T1 CSU/DSUs connecting two LANs together over T1/F-T1
C100/C150
Local Site
NI CI Sync
................ ROUTER
TEL-LINK
T1 CSU/DSU
NI
................
TEL-LINK
T1 CSU/DSU
CI Sync
ROUTER
Remote Site
LAN LAN NETWORK
V.35 V.35
C100/150 C100/150