DT Etherlink IV
User Manual
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8
TECHNICAL SPECIFICATION
8.1
Interfaces
8.1.1 SHDSL Line Interface
Specification
ITU-T G.991.2-G.shdsl, ITU-T G.991.2-G.shdsl.bis
Line Code
TC-PAM16/32, Extended: TC-PAM4/8/64/128
Impedance
135
Transmit Power
13.5 (Annex A) or 14.5 (Annex B) dBm @ 135
Number of Pairs
1,2 or 4
Bit Rate
192 to 5704kbit/s, Extended: 128 to 15232kbit/s
Connector Type
RJ-45, 8 pin
Overvoltage Protection
ITU-T Rec. K.20/K.21
Wetting Current
2-4mA @ 47VDC
Remote Power
60/90mA @ 120VDC
Remote Power
60/90/125mA @ 200VDC
8.1.2 E1 Line Interface
Specification
ETS 300 166, ITU-T Rec. G.703, G.704
Number of Interfaces
2 or 4
Line Code
HDB3
Impedance
either 120
or 75
Jitter
ITU-T Rec. G.823, ETSI TS 101 135
Bit Rate
2048kbit/s ± 50 ppm
Connector Type
either DB15 male (120
) or two BNC 75
ESD Protection
8kV (Air discharge)
8.1.3 Nx64 and RS-232/RS-485 Interface
Specification
ITU-T Rec V.35/V.36/X.21/V.28 or RS-232/485
Number of Interfaces
1
Bit Rate
1..128 x 64 kbps (synchronous) for V.35/V.36/X.21
1..3 x 64 kbps (synchronous) for V.28
1200..256000
bps (asynchronous) for RS-232/485
Format RS-232/485
Bits: 5…8
Stop bits: 1/1.5/2
Parity: odd/even/odd/mark/space
Connector Type
DB26 high density female
Adapter Cable Connector Type
V.35 ISO2593 (34 Pin MRAC)
V.36 ISO4902 (37 Pin Dsub)
X.21 ISO4903 (15 Pin Dsub)
X.28 ISO2110 (25 Pin Dsub)
RS-232 EIA/TIA-574 or ISO2110 (9 Pin or 25 Pin Dsub)
ESD Protection
8kV (Air discharge)
8.1.4 Monitor or Local Craft Terminal (RS-232) Interface
Specification
EIA-232 / V.28
Data Rate
9600 baud, asynchronous
Protocol
8 bit, no parity, 1 stop bit , flowcontrol none,
no linefeed with carriage return
Signal Level
V.28
Connector Type
DB9 female connector
