Datasheet

DS26514 4-Port T1/E1/J1 Transceiver
19-5856; Rev 4; 5/11 243 of 305
Register Name:
LRSL
Register Description:
LIU Receive Signal Level Register
Register Address:
1006h + (20h x (n - 1)) : where n = 1 to 4
Bit #
7
6
5
4
3
2
1
0
Name
RSL3
RSL2
RLS1
RLS0
—
—
—
—
Default
0
0
0
0
0
0
0
0
Bits 7 to 4: Receiver Signal Level 3 to 0 (RSL[3:0]). Real-time receive signal level as shown in
Table 10-21.
Note that the range of signal levels reported the RSL[3:0] is limited by the Equalizer Gain Limit (EGL) in short-haul
applications.
Table 10-21. Receive Level Indication
RSL3 RSL2 RSL1 RSL0
RECEIVE LEVEL
DS1/E1 (dB)
0
0
0
0
> -2.5
0
0
0
1
-2.5 to -5
0
0
1
0
-5 to -7.5
0
0
1
1
-7.5 to -10
0
1
0
0
-10 to -12.5
0
1
0
1
-12.5 to -15
0
1
1
0
-15 to -17.5
0
1
1
1
-17.5 to -20
1
0
0
0
-20 to -22.5
1
0
0
1
-22.5 to 25
1
0
1
0
-25 to -27.5
1
0
1
1
-27.5 to -30
1
1
0
0
-30 to -32.5
1
1
0
1
-32.5 to -35
1
1
1
0
-35 to -37.5
1
1
1
1
< -37.5