Rainbow Electronics DS3134 - Manual (Page 201)

DS3134
201 of 203
Dual T3 with 256 HDLC Channel Support
Figure 14E shows an application where two T3 lines are interfaced to a single DS3134. In this
application, the T3 lines are demultiplexed by the M13 block and passed to the DS21FF42 Four x Four 16
Channel T1 Framer and DS21FT42 Four x Three 12 Channel T1 Framer devices. The T1 framers locate
the frame and multiframe boundaries and interface to the DS3134 by aggregating four T1 lines into a
single 8.192 MHz data stream, which then flows into and out of the DS3134. The T1 lines can be either
clear channel or channelized.
Dual T3 Application Figure 14E
DS3134
CHATEAU
DS21FF42
Four x Four
16 Channel
T1 Framer
DS21FT42
Four x Three
12 Channel
T1 Framer
DS21FF42
Four x Four
16 Channel
T1 Framer
DS21FT42
Four x Three
12 Channel
T1 Framer
M13
Interface
M13
Interface
1
2
16 T3
Line
#1
T3
Line
#2
Port 0
Port 1
Port 2
Port 3
17
18
28
Port 4
Port 5
Port 6
Port 7
1
2
16
17
18
28
Port 8
Port 9
Port 10
Port 11
Port 12
Port 13
Port 14
Port 15
app_a