DS3172 Maxim Integrated, DS3172 Datasheet - Page 73

• Manufacturer Part Number: DS3172
• Description: Network Controller & Processor ICs Dual DS3/E3 Single Chip Transceiver
• Manufacturer: Maxim Integrated

Specifications of DS3172

• Part # Aliases: 90-31720-000

Figure 10-12
Figure 10-12. AIS Signal Flow
Table 10-18
Table 10-18. Line AIS Enable Modes
PORT.CR1
LAIS[1:0]
LINE/TRIBUTARY
00
00
01
10
10
11
SIDE
lists the LAIS decodes for various line AIS enable modes.
shows the AIS signal flow through the device.
TRANSMIT
RECEIVE
Frame Mode
LINE
LINE
DS3
DS3
Any
Any
E3
E3
LLB
0
1
optional
encoder
optional
decoder
B3ZS/
HDB3
B3ZS/
HDB3
Description
Automatic AIS when DLB is enabled
(PORT.CR4.LBM = 1XX)
Automatic AIS when DLB is enabled
Send UA1
Send AIS
Send AIS
Disable
0
1
TAIS
DS3/
UA1
AIS
DLB
TSOFO
1
0
73
TAIS
0
1
DS3/UA1
detector
AIS
UA1
AIS
FRAMER
DS3/
UA1
AIS
DAIS
0
1
PLB
0
1
UA1
AIS
AIS Code
DS3AIS
DS3AIS
none
UA1
UA1
UA1
DAIS
0
1
RECEIVE
PAYLOAD
TRANSMIT
PAYLOAD
TRUNK SIDE
SYSTEM/