DS2155LNB+ Maxim Integrated Products, DS2155LNB+ Datasheet - Page 61

• Manufacturer Part Number: DS2155LNB+
• Description: IC TXRX T1/E1/J1 SGL 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS2155LNB+

• Function: Single-Chip Transceiver
• Interface: E1, HDLC, J1, T1
• Number Of Circuits: 1
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 75mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Includes: BERT Generator and Detector, CMI Coder and Decoder, HDLC Controller
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -

Table 10-B. E1 Alarm Criteria
V52LNK
ALARM
RDMA
RLOS
RUA1
RRA
RCL
An RLOS condition exists on power-up
prior to initial synchronization, when a
resync criteria has been met, or when a
manual resync has been initiated by
E1RCR1.0
255 or 2048 consecutive 0s received as
determined by E1RCR2.0
Bit 3 of nonalign frame set to 1 for three
consecutive occasions
Fewer than three 0s in two frames (512
bits)
Bit 6 of time slot 16 in frame 0 has been set
for two consecutive multiframes
Two out of three Sa7 bits are 0
SET CRITERIA
61 of 238
At least 32 1s in 255-bit times
are received
Bit 3 of nonalign frame set to
0 for three consecutive
occasions
More than two 0s in two
frames (512 bits)
CLEAR CRITERIA
SPECIFICATION
G.775/G.962
1.6.1.2
O.162
O.162
G.965
2.1.4
ITU