Section 2 Engineering Guidelines
Total Access 850 System Manual
28
© 2004 ADTRAN, Inc.
64203376L1-1B
Faceplate Bantam Jack
The faceplate bantam jack provides a means to monitor the network T1 connected to the rear of the
Total Access 850 chassis. The jacks accept standard 310-type bantam plugs. Figure 2 display the bantam jack
monitoring points.
Figure 2. BCU Bantam Jack Test Diagram
Faceplate TEST Connector
The faceplate
TEST
connector provides the necessary clock output required by standard DS0 Logic Test
equipment (such as a TPI 108/109 test set). Specifically, the Test connector outputs 8 kHz and 64 kHz clock
reference signal. DS0 test equipment is used to test DS0 access modules such as the OCU DP, DS0 DP, or
UBR1TE. Once the test equipment is connected to the reference clock source, individual tests can be
performed on DS0 access modules using the faceplate bantam jacks on each unit. Figure 3 on page 28
illustrates the DB-9
TEST
connector.
Figure 3. BCU DB-9 Test Connector
T1 Router Controller Unit (4200376L1#TDM and 4200376L1#ATM)
The following is operational information pertaining to the T1 Router Controller Unit when used with the
Total Access 850 system.
Clock and Data
Recovery
MON IN
Test Jack
T1
RX
PAIR
Line Format
Decoder
To
Backplane
Receiver Circuitry
Transmitter Circuitry
MON OUT
Test Jack
Local
Loopback
Point
T1
TX
PAIR
From
Backplane
Line
Loopback
Point
Payload/CSU
Loopback
Point
Equalizer
Line Format
Encoder
DJAT
T1
R1
T
R
TEST
+5 V
GND
64 kHz
8 kHz
1
2
3
4
5
6
7
8
9
Summary of Contents for Total Access 850
Page 14: ...Table of Contents Total Access 850 System Manual 14 2004 ADTRAN Inc 64203376L1 1B ...
Page 16: ...Section 1 System Description Total Access 850 System Manual 16 2004 ADTRAN Inc 64203376L1 1B ...
Page 22: ...Section 1 System Description Total Access 850 System Manual 22 2004 ADTRAN Inc 64203376L1 1B ...
Page 224: ...Section 5 DLP 4 Total Access 850 System Manual 224 2004 ADTRAN Inc 64203376L1 1B ...
Page 232: ...Section 5 DLP 6 Total Access 850 System Manual 232 2004 ADTRAN Inc 64203376L1 1B ...
Page 236: ...Section 5 DLP 7 Total Access 850 System Manual 236 2004 ADTRAN Inc 64203376L1 1B ...
Page 244: ...Section 5 DLP 10 Total Access 850 System Manual 244 2004 ADTRAN Inc 64203376L1 1B ...
Page 252: ...Section 5 DLP 13 Total Access 850 System Manual 252 2004 ADTRAN Inc 64203376L1 1B ...
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Page 264: ...Section 5 DLP 16 Total Access 850 System Manual 264 2004 ADTRAN Inc 64203376L1 1B ...
Page 278: ...Section 6 ADTRAN Utilities Total Access 850 System Manual 278 2004 ADTRAN Inc 64203376L1 1B ...