参数资料
型号: DS26503
英文描述: T1/E1/J1 BITS Element
中文描述: T1/E1/J1 BITS单元
文件页数: 83/123页
文件大小: 995K
代理商: DS26503
DS26503 T1/E1/J1 BITS Element
83 of 123
T1 Mode
L2
0
0
0
0
1
1
1
1
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
HW
Mode
Bit 0–5/Gain Control Bits 0–5 (GC0–GC5).
The GC0 through GC5 bits control the gain setting for the non-automatic gain
mode. Use the tables below for setting the recommended values. The LB (line build-out) column refers to the value in the
L0–L2 bits in LIC1 (Line Interface Control 1) register.
NETWORK MODE
LB
GC5
GC4
0
1
0
1
0
1
2
0
1
3
1
0
4
1
0
5
1
0
6
0
1
7
1
1
0
0
1
1
0
1
2
0
1
3
0
1
4
1
0
5
1
0
6
0
0
7
1
1
0
1
0
1
1
0
4
1
0
5
1
0
0
0
1
E1, Impedance Match On
1
0
1
Bit 6/Automatic Gain Control Enable (AGCE).
0 = use Transmit AGC, TLBC bits 0–5 are “don’t care”
1 = do not use Transmit AGC, TLBC bits 0–5 set nominal level
Bit 7/Unused, must be set = 0 for proper operation.
L1
0
0
1
1
0
0
1
1
L0
0
1
0
1
0
1
0
1
APPLICATION
N (1)
1:2
1:2
1:2
1:2
1:2
RETURN LOSS
N.M.
N.M.
N.M.
N.M.
N.M.
Rt (1)
0
0
0
0
0
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
TLBC
Transmit Line Build-Out Control
34h
7
0
6
5
4
3
2
1
0
AGCE
0
GC5
0
GC4
0
GC3
0
GC2
0
GC1
0
GC0
0
0
0
0
0
0
0
0
0
GC3
0
1
1
0
0
0
0
1
1
0
0
1
0
0
1
1
0
0
1
1
1
1
GC2
1
0
0
0
1
1
0
1
1
1
1
0
0
0
1
1
0
0
0
0
0
0
GC1
1
1
1
0
1
1
1
1
1
0
0
1
1
0
0
1
0
0
1
0
1
1
GC0
0
1
0
0
1
1
1
1
0
1
1
0
0
0
0
1
1
1
0
0
0
0
T1, Impedance Match Off
T1, Impedance Match On
E1, Impedance Match Off
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