DS26504LN Maxim Integrated Products, DS26504LN Datasheet - Page 45

• Manufacturer Part Number: DS26504LN
• Description: Network Controller & Processor ICs T1-E1-J1-64kHz Compo 4kHz Composite Clock
• Manufacturer: Maxim Integrated Products

Specifications of DS26504LN

• Product: Framer
• Number Of Transceivers: 1
• Data Rate: 44.736 Mbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 150 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-64

Table 8-1. T1 Alarm Criterion
Note 1: The definition of Blue Alarm (or Alarm Indication Signal) is an unframed, all-ones signal. Blue Alarm detectors should be able to
operate properly in the presence of a 10E-3 error rate, and they should not falsely trigger on a framed, all-ones signal. The Blue Alarm
criterion in the DS26504 has been set to achieve this performance.
Blue Alarm (AIS)
(Note 1)
D4 Yellow Alarm (RAI)
(T1RCR2.0 = 0)
Japanese Yellow Alarm
(T1RCR2.0 = 1)
ESF Yellow Alarm (RAI)
Red Alarm (RLOS)
(Also known as Loss of Signal)
ALARM
Over a 3ms window, five or
fewer zeros are received
Bit 2 of 256 consecutive
channels is set to zero for at
least 254 occurrences
12
for two consecutive
occurrences
16 consecutive patterns of
00FF appear in the FDL
192 consecutive zeros are
received
th
framing bit is set to one
SET CRITERION
45 of 129
Over a 3ms window, six or more zeros
are received
Bit 2 of 256 consecutive channels is
set to zero for less than 254
occurrences
12
consecutive occurrences
14 or fewer patterns of 00FF hex out of
16 possible appear in the FDL
14 or more ones out of 112 possible bit
positions are received, starting with the
first one received
th
framing bit is set to zero for two
CLEAR CRITERION