49
data rate of 2048kbps (32 x 64k).
STU-C (E1)
STU-R
(V.35)
DTE
DTE
V.35
E1
SHDSL
Unframed N=32
STU-C (V.35)
STU-R (E1)
DTE
DTE
E1
V.35
SHDSL
Frame N x 64 (N=1~31)
Time slots, N value, are placed in the frame. If time Slot Number is1 from 1~31
(N=1~31), it is Fractional E1. If time Slot Number is 32 (N=32), it is unframed.
Fractional E1
For fractional E1(FE1), the data rate is from 64k(N=1) to 1984k(N=31), according
to the E1 framing. If the E1 frame is PCM31(FAS) or PCM31C(FAS+CRC4), there
are 1~31 available time slot for use data. For example, if the data rate of SHDSL
line set to be 512k, the time slot number is 8 and first time slot number is 1. The
frame is shown as below.
FAS
Data
Data
Data
Data
Data
Data
Data
Data
0
1
2
3
4
5
6
7
8
31
Time Slots
64k
64k
64k
64k
64k
64k
64k
64k
64k
64k
1408k
9 ~ 30
The First Time Slot setting of PCM31(FAS) and PCM31C(FAS+ CRC4) have to
follow the rule:
First Time Slot
≦
31 - Time Slot Number
Using the E1 framing of PCM30(FAS+CAS) or PCM30C(FAS+CAS+CRC4), the
FAS will occupy Time Slot 0 and CAS Time Slot 16. There are only 30 Time Slot left
for data. On the other hand, the data rate is 1920kbps.
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: ......