DS26303LN-75+ Maxim Integrated Products, DS26303LN-75+ Datasheet - Page 61

• Manufacturer Part Number: DS26303LN-75+
• Description: IC LIU E1/T1/J1 3.3V 144-ELQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS26303LN-75+

• Number Of Drivers/receivers: 8/8
• Protocol: T1/E1/J1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP Exposed Pad, 144-eLQFP, 144-HLQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 6-6. AIS Criteria T1.231, G.775, and ETS 300 233 Specifications
AIS
Detection
AIS
Clearance
Table 6-7. AIS Detection and Reset Criteria
AIS
Detection
AIS
Clearance
Table 6-8. Registers Related to AIS Detection
LOS/AIS Criteria Selection
Alarm Indication Signal Status
AIS Interrupt Enable
AIS Interrupt Status
CRITERIA
CRITERIA
REGISTER
Two or fewer 0s in each of two
consecutive 512-bit streams
received.
Three or more 0s in each of two
consecutive 512-bit streams
received.
Two or fewer 0 in each of two
consecutive 512-bit streams
received.
Three or more 0s in each of two
consecutive 512-bit streams
received.
ITU-T G.775 FOR E1
ITU-T G.775 FOR E1
LASCS
NAME
AISIE
AISIS
AIS
Fewer than three 0s detected
in 512-bit period.
Three or more 0s in a 512-bit
period received.
Fewer than three 0s detected
in 512-bit period.
Three or more 0s in a 512-bit
period received.
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
61 of 101
ETS 300 233 FOR E1
ETS 300 233 FOR E1
Section criteria for AIS. T1.231, G.775, ETSI 300 233 for
E1.
Set when AIS is detected.
If reset interrupt due to AIS is not generated.
Latched if there is a change in AIS and the interrupt is
enabled.
STANDARD
STANDARD
FUNCTIONALITY
Fewer than nine 0s detected
in a 8192-bit period (a ones
density of 99.9% over a period
of 5.3ms) are received.
Nine or more 0s detected in a
8192-bit period are received.
Fewer than nine 0s contained
in 8192 bits.
Nine or more bits received in a
8192-bit stream.
ANSI T1.231 FOR T1
ANSI T1.231 FOR T1