Datasheet

DS26518 8-Port T1/E1/J1 Transceiver
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Register Name:
LRSL
Register Description:
LIU Receive Signal Level Register
Register Address:
1006h + (20h x (n - 1)) : where n = 1 to 8
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 10-20.
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 10-20. 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