ADC H2TU-C-388 Manual Do Utilizador
Appendix A - Specifications
152-388-100-02, Issue 2
50
June 6, 2000
H2TU-C-388 List 1
L
OOP
A
TTENUATION
Each loop has no more than 35 dB of loss at 196 kHz, with driving and terminating impedances of 135
Ω
(see
below).
H
I
G
AIN
L
INE
U
NIT
C
ARD
-E
DGE
C
ONNECTOR
shows the card-edge connectors on the HiGain Line Unit. Active pins are highlighted in black.
Figure 28.
HiGain Line Unit Card-Edge Connector
Network Management Control Bus
The H2TU-C-388 provides a Network Management Control Bus on pin 104 of the card-edge connector. This
allows the various ADC Management System protocols to manage the H2TU-C through the HMU-319 HiGain
Management Unit. Whenever the H2TU-C-388 is under management, the
allows the various ADC Management System protocols to manage the H2TU-C through the HMU-319 HiGain
Management Unit. Whenever the H2TU-C-388 is under management, the
MNGD
message displays periodically on
the front-panel display.
Table 19.
HDSL2 Cable Attenuation Chart
Cable Gauge
Loss at 196 kHz (dB/kft)
Ω
per kft
26/0.4 mm
3.88
83
24/0.51 mm
2.84
52
22/0.61 mm
2.18
32
19/0.91 mm
1.54
16
Some HiGain Line Unit features are affected when it is under management. Consult the
management unit practice for further information.
management unit practice for further information.
106
105
104
103
102
101
100
DSX-1 OUT
DSX-1 IN
HDSL2 Span
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
Ground
Ground
Frame ground
Fuse alarm*
Ring 1
Tip 1
Management bus
Ring
Ring 1
Tip
Tip 1
Factory burn-in
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
206
109
108
107
* Fuse alarm is normally floating (0 to 80 Vdc max.) and
at -48 Vdc (10 mA max.) when activated.