MSDSL Loop Interface |
|
Number
of pair
Line Code
Line Rate Category I Category
II
Category
III
Line Impedance
Transmit Power
Sealing current[optional] Connection
|
One
two-wire pair ( non-loaded)
CAP
144,272,400 and 528 Kbps
400,528,784,1040 and 1168 Kbps 528,784,1168,1552 and 2320
Kbps
135 ohms
7.4¢X~13.5 dBm
<20 mA
Wired |
FT1 DTE port Interface |
Line
Interface
Line Code
Frame Format
Line Rate
Fraction
Line Impedance Connection |
ITU-T
G.703/ANSI T1.403
B8ZS or AMI
D4,ESF or Transparent
1.544 ¡Ó 50PPM
Nx64K,1¡ØN¡Ø24
100 ohms,balanced
Wired |
FE1 DTE port Interface |
Line
Interface
Line Code
Frame Format
Line Rate
Fractional number
Line Impedance Connection |
ITU-TG.703
HDB3 or AMI
Unframed FAS,FAS_CAS
FAS_MFAS,
FAS_MFAS_CAS
2.048 ¡Ó 50PPM
Nx64[56]K, 1¡ØN¡Ø32
120 ohms
Wired |
Nx64[56]K DTE port Interface |
Data
Rate
Interface
Receive clock
Transmit Clock
Data Interface
Control Signal |
Nx64[56]K,1¡ØN¡Ø32
V.35, EIA RS-530 or RS-449,Enthernet Normal/Inverted
Normal/Inverted ST or TT
Normal/Inverted
Always on, off or reflect operation |
Timing Source at COT |
Transmit
Clock
Free running clock
External clock
|
Input
T1/E1
Loop timing
DTE timing
Internal Oscillator
Bipolar 64/8K CC or all one G.703 T1 Impedance:120ohm
balanced |
Timing Source at RT |
Transmit
Clock
Free running clock |
Loop
timing
Input T1/E1
DTE timing
Internal Oscillator |
Power Requirement |
Input
Voltage
(Shelf type)
Input Voltage
(standalone)
Consumption
(Shelf type)
Consumption
(Standalone) |
-36~-72
VDC
-36~-72 VDC or
90~260 VAC @ 47-65 Hz
80W, nominal
5W nominal |
OAM&P |
RS-232,
ASCII Terminal
Window based network management system (SNMP protocol)
|
Dimensions (HxWxD) |
Shelf
type
Standalone |
222mm
x 437mm x 306mm
40mm x 200mm x 300mm |
Environment |
Temperature
Humidity |
0¢J~50¢J(0¢J~60¢Jfor
standalone type)
5%~95% |