DS26502 Datasheet

  • DS26502

  • T1/E1/J1/64KCC BITS单元

  • 1043.62KB

  • 125页

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DS26502 T1/E1/J1/64KCC BITS Element
6.3 Line Build-Out
Table 6-3. E1 Line Build-Out
L2
PIN 13
0
0
1
1
1
1
L1
PIN 12
0
0
0
0
1
1
L0
PIN 11
0
1
0
1
0
1
APPLICATION
75鈩?normal
120鈩?normal
75鈩?with high return loss*
120鈩?with high return loss*
Reserved
Reserved
N (1)
1:2
1:2
1:2
1:2
鈥?/div>
鈥?/div>
RETURN LOSS
N.M.
N.M.
21dB
21dB
鈥?/div>
鈥?/div>
Rt (1)
0
0
6.2鈩?/div>
11.6鈩?/div>
鈥?/div>
鈥?/div>
*TTD
pin must be connected high in this mode.
N.M. = not meaningful
Table 6-4. T1 Line Build-Out
L2
PIN 13
0
0
0
0
1
1
1
1
L1
PIN 12
0
0
1
1
0
0
1
1
L0
PIN 11
0
1
0
1
0
1
0
1
APPLICATION
DSX-1 (0 to 133 feet)/0dB CSU
DSX-1 (133 to 266 feet)
DSX-1 (266 to 399 feet)
DSX-1 (399 to 533 feet)
DSX-1 (533 to 655 feet)
Reserved
Reserved
Reserved
N (1)
1:2
1:2
1:2
1:2
1:2
鈥?/div>
鈥?/div>
鈥?/div>
RETURN
LOSS
N.M.
N.M.
N.M.
N.M.
N.M.
鈥?/div>
鈥?/div>
鈥?/div>
Rt (1)
0
0
0
0
0
鈥?/div>
鈥?/div>
鈥?/div>
6.4 Receiver Operating Modes
Table 6-5. Receive Path Operating Mode
RMODE3
PIN 64
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
RMODE2
PIN 61
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
RMODE1
PIN 4
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
RMODE0
PIN 3
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
RECEIVE PATH OPERATING MODE
T1 D4
T1 ESF
J1 D4
J1 ESF
E1 FAS
E1 CAS
E1 CRC4
E1 CAS and CRC4
E1 G.703 2048kHz Synchronization Interface
64kHz + 8kHz Synchronization Interface
64kHz + 8kHz + 400Hz Synchronization Interface
6312kHz Synchronization Interface
Reserved
Reserved
Reserved
Reserved
26 of 124

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