47
3.6.4
Setup - E1 interface
3.6.4.1
Channel
Framing is required to recover the channelized E1. In transparent operation,
the framing is configured as Unframed. In this case the G.SHDSL framer must be
set to Nx64 with N=32. For any framing such as FAS or CAS, the G.SHDSL framer
must be set to E1, then the E1 framing here may be set accordingly.
The cross reference table between Channel and Framing:
Channel
Framing
PCM31
FAS
PCM31C FAS+CRC4
PCM30
FAS+CAS
PCM30C FAS+CAS+CRC4
FULL
Unframed
FAS
Frame Alignment Signal uses a 7-bits pattern to establish
and maintain the frame synchronization. The FAS word
is located in timeslot 0 of frame. In FAS mode there are
1~31 timeslot available for use data.
CAS
Also known as time slot 16 multi-framing. It requires a
multi-framing alignment signal to be present for frame
sync. The Multi-frame Alignment Signal (MFAS) is
inserted into the 16th timeslot of frame 0 of the 16-frame
multi-frame.
In CAS mode, there are 30 channels available for user
data. If timeslot 16 is included in the unit’s mapping, it
will be disregarded.
Summary of Contents for SHRM03b TDM Series
Page 1: ...SHRM03b G SHDSL bis TDM Series 4U 19 Chassis ...
Page 2: ......
Page 23: ...23 When using 4 wire 2 pairs mode only the upper side of RJ 45 connector can be used ...
Page 37: ...37 3 5 1 Menu Tree diagram 2 wire mode ...
Page 38: ...38 3 5 2 Menu Tree diagram 4 wire mode ...
Page 52: ...52 75 Ohms 120 Ohms BNC Connector RJ 45 Connector ...
Page 59: ...59 ...
Page 78: ...78 ...
Page 82: ...82 3 8 2 4 Series interface 4 wire mode 3 8 2 5 Ethernet interface 2 wire mode ...
Page 83: ...83 3 8 2 6 Ethernet interface 4 wire mode ...
Page 84: ...84 3 8 2 7 T1 interface 2 wire mode 3 8 2 8 T1 interface 4 wire mode ...
Page 86: ...86 3 8 3 3 Ethernet interface For Ethernet interface model ...
Page 87: ...87 3 8 3 4 T1 interface For T1 interface model ...
Page 105: ...105 Ethernet Rate Auto Speed Duplex ...
Page 113: ...113 side Click Reset button and the values will be set to default ...
Page 116: ...116 4 5 7 4 SNMP All SNMP parameter must setup on this item ...
Page 128: ...128 cable ...
Page 131: ...131 ...
Page 136: ...136 ...
Page 137: ......
Page 138: ......