Verilink C100 (880-502893-001) Product Manual - Manual (Page 18)

Introduction
1-6 Verilink C100 and C150 T1/FT1 CSU/DSU 06/12/97
Applications
The C150 T-1 CSU/DSU can be used in all C100 applications plus
drop-and-insert applications. The C100 and C150 synchronous channel
includes an RS232, RS422/RS530 and a V.35 interface.
The C150 includes both the DSX-1 port and synchronous data channel
as standard. The DSX-1 port can drive up to 6000 feet.
The following subsection give some typical applications where the
C100 and C150 T-1 CSU/DSUs can be used.
C100 or C150
applications Figure 1-5 shows the T-1 CSU/DSU connecting two sites over a T-1
facility in the first of two very basic applications. The Network
Interface (NI) side of each unit connects to the T-1 facility and the
Customer Interface (CI) synchronous interface of each unit connects to
the customer LAN Routers.
The synchronous channel interfaces can be RS232, RS530/RS422 or
V.35. They can be changed by toggling a switch since they are built-in,
and they can be different at each end.
The speed of the synchronous channel can be any multiple of 56000 or
64000 bps up to 1536000 bps.
Figure 1-5 C100 or C150 T-1 CSU/DSU connecting two LANS over a T-1 service
Figure 1-6 shows the T-1 CSU/DSU in a single-ended application
connected to a Frame Relay Service. The Network Interface (NI) side of
the unit connects to the T-1 facility and the Customer Interface (CI)
synchronous channel of the unit connects to the customer LAN Router.
Figure 1-6 C100 or C150 T-1 CSU/DSU connecting to a frame relay service
Local Site
NI CI Sync
................ ROUTER
TEL-LINK
T-1 CSU/DSU
NI
................
TEL-LINK
T-1 CSU/DSU
CI Sync
ROUTER
Remote Site
LAN LAN NETWORK
C100/150 C100/150
Local Site
NI CI Sync
................ ROUTER
TEL-LINK
T-1 CSU/DSU
LAN
FRAME
RELAY
SERVICE
C100/150