ATL Telecom AM2048 - Manual (Page 39)

ATL TELECOM USER GUIDE
AM2048A
75 74 ATL TELECOM USER GUIDE
AM2048A
TABLE C3.1 - G.SHDSL and Non G.SHDSL
Notes:
1. Each bit in the parameter value controls a specific paramer (i.e. for the G.703 interface -
bit 0 controls the connector impedance, bit 1 the CRC, bit 2 controls whether or not it is
structured and bit 3 controls the timing). When bit 2 is set to unstructured, then the value
of bit 1 (CRC) is ignored and is always interpreted as “Off”.
2. In 4b and 5b, “Clamp” refers to the C circuit for X21 interfaces, and circuit 105 for V35
interfaces.
3. In 5a and 5b, these options must be set at the ELU and will be downloaded to the NTU.
They can’t be changed at the NTU.
Parameter
Number LL LB RL Value
4b (ELU) 1 0 0 00000
00001
00010
00011
00100
00101
00110
00111 Off Disable OFF
Off Disable ON
Off Enable OFF
Off Enable ON
On Disable OFF
On Disable ON
On Enable OFF
On Enable ON
Clamp FIFO Invert Rx Clock X21/V35 Interface
5b (NTU) 1 0 1 00000
00001
00010
00011
00100
00101
00110
00111 Off Disable OFF
Off Disable ON
Off Enable OFF
Off Enable ON
On Disable OFF
On Disable ON
On Enable OFF
On Enable ON