DS2143 Maxim Integrated Products, DS2143 Datasheet - Page 18

• Manufacturer Part Number: DS2143
• Description: IC CONTROLLER E1 5V LP 40-DIP
• Manufacturer: Maxim Integrated Products

Specifications of DS2143

• Controller Type: E1 Controller
• Interface: Parallel/Serial
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 10mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ALARM CRITERIA Table 2
Note: all the alarm bits in Status Register 1 except the RUA1 will remain set after they are read if the
alarm condition still exists; the RUA1 will clear and check the next 512 bits for an all 1s condition at
which point it will again be set if the alarm condition still is present.
RSA1
(receive signaling
all 1s)
RSA0
(receive signaling
all 0s)
RDMA
(receive distant
multiframe alarm)
RUA1
(receive unframed
all 1s)
RRA
(receive remote
alarm)
RCL
(receive carrier
loss)
ALARM
over 16 consecutive frames
(one full MF) timeslot 16
contains less than 3 0s
over 16 consecutive frames
(one full MF) timeslot 16
contains all 0s
bit 6 in timeslot 16 of frame 0
set to 1 for two consecutive
MFs
less than three 0s in two frames
(512 bits)
bit 3 of non-align frame set to 1
for three consecutive occasions
255 consecutive 0s received
SET CRITERIA
18 of 44
over 16 consecutive frames (one full
MF) timeslot 16 contains three or
more 0s
over 16 consecutive frames (one full
MF) timeslot 16 contains at least a
single 1
bit 6 in timeslot 16 of frame 0 set to
0 for two consecutive MFs
more than two 0s in two frames (512
bits)
bit 3 of non-align frame set to 0 for
three consecutive occasions
received
in 255 bit times, at least 32 1s are
CLEAR CRITERIA
DS2143/DS2143Q
G.732
4.2
G.732
5.2
O.162
2.1.5
O.162
1.6.1.2
O.162
2.1.4
G.775
SPEC.
ITU