Datatek DT-4180 - Manual (Page 98)

9 4 8 0 , 4 1 8 0 , 4 2 8 0 , 4 2 8 4 4 0 0 0 X A U s e r M a n u a l
04/09/09
98
Central Office
LTSs
NE
5ESS
BX.25
HDLC
BX.25
Central Office
LTSs
NE
5ESS
BX.25
HDLC
BX.25
Network
Equipment
TDM
DS0
DS0
DS0
DS0
T1
56K/64K
Serial
Network
Data Center
4180 4180
4180 as a Serial Interface Channel Bank Replacement
The TSR is configured to have 24 channels for a T1, and each is given a single timeslot.
A connection is made via an internal PDD from a serial port on the 4000XA/4180 and a
TSR channel. Since the 4000XA/4180 has 16 serial ports, if more are needed then
another device such as a 4000 may be used for the additional serial ports.
A more effective manner is to eliminate the network equipment and the serial
connections altogether. The 4000XA/4180 allows the individual TSR channels to be
accessed by network endpoints as if they are serial ports. The HDLC is terminated, and
standard TCP/IP protocols are used to connectivity. The diagram below is this
configuration: