ADC HiGain HDSL2 Quick Installation Manual page 4

Card-edge Connector
219 119 Frame GND
GND 218 118 GND
-48Vdc 217 117 Fuse alarm*
216 116
215 115 Ring1
214 114 Tip1
213 113
212 112
211
111
210
110 Ring
209 109 Tip
208
108
107 Factory burn-in
207
206
106
205 105
204 Management bus
104
203 103
202 Ring
102
201 101 Tip
200
100
* Fuse alarm is normally floating (0 to 80 V max.) and
at -48 V (10 mA max.) when activated.
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
DSX-1 RCV
Green LED Normal operation.
Red LED Fuse alarm.
HDSL2 acquisition or
Flashing Red LED
system alarm.
Yellow LED
A Customer Remote (CREM)
DSX-1 XMT
loopback or a Network Local
(NLOC) loopback is in effect.
Flashing Yellow LED System is in Armed (ARM)
mode.
Off Line power is off.
Provides non-intrusive bridging jack
access to (XMT)
HDSL2 Span
HDSL2 span at the DSX-1 interface.
Allows monitoring of the T1 payloads.
210 Bantam jack allows communication between
the H2TU-C and a maintenance terminal for access
to the unit's provisioning and performance monitoring
screens. Use the furnished 210-to-DB9 connector
adapter to connect your 9-pin serial cable.
Front Panel
Four-character display
HiGain
HDSL2
HDSL2
L
StatusLED
H
2
T
U
•
C
3
8
8
M
L
O
B
D
K
E
STATUS
DSX-1 bridging jacks
X
M
T
D
and from (RCV) the
BRG S
1
R
C
V
Configuration number
R
S
(on PC board)
2
3
2
DCE
Craft port
List number
System option buttons
Use MODE and LBK buttons to review all system
parameters, including user-configured settings, and to
activate loopbacks.
To display system parameters: Press the MODE b
for at least 3 seconds to place the front-panel display in
scroll mode. When it has finished scrolling through all the
system parameters, the display returns to its normal mode.
To initiate a dual loopback: Press the LBK button for more
than 3 seconds to activate both the NLOC and CREM loopbacks.
If a loopback condition already exists, this will loopdown all
existing loopbacks. Press the LBK button again for more than
3 seconds to reactivate the dual loopback.
To initiate a manual loopback:
1 Press both the MODE and LBK buttons for at least
3 seconds. The following message appears:
MAN LPBK NLO?
2 Press the LBK button to activate the NLOC loopback
or press the MODE button to select the next available
loopback.
To manually terminate a loopback , press both the
MODE and LBK buttons for 3 or more seconds
CLEI/ECI bar code label
Maintenance Terminal Modem Settings
(inside handle)
9600 baud
8 data bits
Extraction handle
No parity
Use to remove the
1 stop bit
H2TU-C-388 from
Hardware flow control: OFF
its slot .
Terminal emulation software: VT100
utton