ADC HiGain H2TU-C-319 List 2E Manual page 2

Card-edge connector
DSX-1TxTip (In)
To AUX Port
DSX-1 RcvTip 1 (Out)
DSX-1TxTip (In)
A
To MUX Port
DSX-1 RcvTip 1 (Out)
B
C
D
E
HDSL2 SpanTip
F
LOS Alarm Bus H
Frame GND J
K
L
MTAF Tip (Out)
MetallicTest
Access (TB6)
MTAF Tip (In)
L T
OOPBACK ESTING
Initiate loopback testing from the Monitor screen or use the MODE and SEL buttons. The
inband codes below can also be sent by a test set.
H2TU-C
CREM
NLOC
4 in 7 6 in 7
Network
GNLB Loopback Commands
Loopback Inband Code Out of Band Code
NLOC 1111000 (4 in 7)
NREM 1110000 (3 in 7)
SMJK 100000 1111-1111-0100-1000
(FF48)
11000
CREM 1111110 (6 in 7)
CLOC 1111100 (5 in 7)
Loopdown 11100 1111-1111-0010-0100
(FF24)
100
For more information about the HDSL2 screens, provisioning, and
loopback testing, refer to the H2TU-C-319 List 2E technical practice,
document number 152-319-125-xx.
Front-Panel Alarm Messages
Message Description
(a)
SYSTEM ALARM MESSAGES
LOSW The HDSL2 loop has lost sync.
LLOS No signal is detected at the DSX-1 input to the H2TU-C.
RLOS No signal is detected at the DS1 input to the H2TU-R.
(b)
LAIS Local AIS Input Signal detected.
(b)
RAIS Remote AIS Input Signal detected.
(b)
LRAI An RAI condition is detected at the remote and the signal from the line unit is error-free.
(b)
RRAI An RAI (yellow) alarm from the Customer Premises Equipment (CPE) with a failure from
the network.
(b)
DBER A system DS1 Bit Error Rate (BER) alarm.
(b)
PRMF H2TU-R Performance Report Messaging BER threshold exceeded at far end.
(b)
PRMN H2TU-R Performance Report Messaging BER threshold exceeded at near end.
HBER A system HDSL2 Block Error Rate (BER) alarm.
MAL The margin on the HDSL2 loop has dropped below the threshold setting.
LA The attenuation on the HDSL2 loop has exceeded the maximum threshold value.
(c)
LINE-POWER ALARM MESSAGES
PWR FEED A short between the Tip and Ring of the HDSL2 pair.
SHRT
PWR FEED The HDSL2 loop is grounded.
GND
PWR FEED A line-power open condition.
OPEN
(a) System alarm messages are listed in order of priority. ALRM displays prior to any alarm message. Pressing
the SEL button initiates an Alarm CutOff (ACO) message.
(b) Does not activate the alarm relay access pin H.
(c) Line-power alarm messages display repeatedly as long as the alarm condition exists and are not included
in the priority order of the system alarm messages.
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
DSX-1 Ring (IN)
To AUX Port
DSX-1 Ring 1 (OUT)
1
DSX-1 Ring (IN)
To MUX Port
2
DSX-1 Ring 1 (OUT)
3
Green LED
4
Flashing Red LED
Red LED
5 GND
Flashing Red LED
6 HDSL2 Span Ring
Yellow LED
7 Management bus
Flashing Yellow LED
8 -48V BAT
Off
9
10 Fuse alarm
MTAF Ring (Out)
MetallicTest
Access (TB6)
MTAF Ring (In)
H2TU-R
NREM CLOC
3 in 7 5 in 7
SMJK
11000
Customer
Premises
Description
DSX-1 signal is looped back to the network at the
H2TU-C.
DSX-1 signal is looped back to the network at the
H2TU-R.
DSX-1 signal is looped back to the network at the
H2TU-R SmartJack module.
(Choose any one of the three commands.)
Signal from customer is looped back to the
customer at the H2TU-C.
Signal from customer is looped back to the
customer at the H2TU-R.
Deactivates any of the above loopbacks.
(Choose any one of the three commands.)
Four-character display
List number
M
O
D
E
Status LED
Normal operation.
O
U
HDSL2 acquisition.
T
Fuse alarm.
System alarm.
A CREM or NLOC loopback
is in effect.
I
N
System is in ARM mode.
Line power is off.
R
S
2
3
2
DCE
Card handle
(Configuration
number and
CLEI code
label on outside
of handle)
Display Code Description (normal operating messages in bold)
A=xx The loop attenuation of the longest (maximum loss) span, measured in dB.
ACQ The multiplexers of the H2TU-C-319 and H2TU-R are trying to establish synchronization.
AnL The multiplexers of the two devices on Span n are trying to establish synchronization with
each other, where n is the number of the span.
ARM Armed to respond to Intelligent Repeater Loop (ILR) codes.
BAD RT? The H2TU-C is not receiving a response from the H2TU-R.
FERR A framing bit error occurred at H2TU-C DSX-1 input.
FLDL Flash download of firmware updates. (Contact Customer Service for update procedures.)
HES H2TU-C HDSL2 loop cyclical redundancy check (CRC) error.
LBPV A local bipolar violation has been received at the DSX-1 input to the H2TU-C.
M=xx Indicates the power of the received HDSL2 signal relative to noise (S/N with respect to
21.5 dB). Any value of 6 dB or greater is adequate for reliable system operation.
MNGD The H2TU-C is under control of the HMU-319 network management unit.
PWR FEED OFF HDSL2 span power is turned off.
PWR FEED ON Indicates that the HDSL2 loop is not grounded or shorted.
SIG The transceivers of the H2TU-C and H2TU-R (or the H2TU-C and first regenerator) are
trying to establish contact with each other on Span 1 of the HDSL2 loop.
SnL The transceivers of the two devices on Span n are trying to establish contact with each
other, where n is the number of the span.
Front-Panel Configuration Options Using MODE and SEL
Display Code Description (default values in bold)
EQL Sets the DSX-1 Equalizer to: 0 (0 to 133 ft.), 133 (133 to 266 ft.), 266 (266 to 399 ft.),
399 (399 to 533 ft.), 533 (533 to 655 ft.).
RLBO Sets the H2TU-R line buildout to 0 dB, -7.5 dB, or -15 dB.
LPBK Enables (ENA) or disables (DIS) SmartJack loopback commands.
FT1 Enables (ENA) or disables (DIS) system response to DDS latching loopback commands for
fractional T1 applications.
PWRF OFF = disables HDSL2 powering. ON = HDSL2 line voltage is -185 Vdc maximum.
HBER 1E-6 or 1E-7 = alarm activates when the HDSL2 BER alarm threshold exceeds 10
NONE = prevents generation of a system alarm due to BER.
DBER Enables (ENA) or disables (DIS) fixed 24-hour DSX-1 BER alarm threshold.
LBTO Loopback timeout = NONE, 20, 60, 120 minutes.
ALM Enables (ENA) or disables (DIS) alarm indications on pin H.
DS1 DSX-1 line code = B8ZS or AMI.
CONV H2TU-R frame format conversion = OFF (framing determined by the DS1 frame formatting
option), ACON (auto detection of framing and potential frame conversion at the H2TU-R), or
FCON (auto detection of framing and forced frame format conversion at the H2TU-R).
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode).
ALMP Enables system to output an alarm pattern: AIS or LOS.
BPVT Enables (ENA) or disables (DIS) Bipolar Violation Transparency.
NLBP Enables the H2TU-R to transmit either AIS or LOS towards the CI for any network loopback.
TLOS Enables (ENA) or disables (DIS) logic loopback at the H2TU-R when LOS occurs at DS1 input.
RTPV Enables (ENA) or disables (DIS) remote provisioning.
PRM OFF = no enhanced Performance Report Messaging; SPRM = Supplemental PRM;
NPRM = Network PRM; S + N = SPRM + NPRM.
NAIS If ALMP is set to AIS, this option specifies which pattern is sent to the network when a
remote LOS or AIS occurs. CI = AIS-CI sent to the network; AIS = AIS sent to the network.
CONF Updates all operating mode selections (YES or NO).
ROVR Enables (ENA) conversion of a network ESF-RAI or ESF-RAI-CI to SF-RAI or SF-RAI-CI
pattern. Disables (DIS) conversion of the RAI-CI.
RACI Enables (ENA) DS1 SF-RAI-CI (yellow alarm) signal received by the H2TU-R to be converted
to an SF-RAI-CI signal towards the network.
Disables (DIS) conversion of the DS1 SF-RAI.
ADS1 MUX = activates the DSX-1 MUX port.
AUX = Activates the auxiliary DSX-1 Port #2.
CTHR = Activates the CUt-through mode.
LATT Loop Attenuation Threshold (0 - 40 dB). Default = 35 dB.
MARG Determines the minimum allowable margin below which a system alarm can occur (4 dB) 0 dB
to -15 dB.
SPLB xxxx Configures system for generic (GNLB) or special inband loopback commands (A2LB, A3LB, A4LB).
System option buttons (for manual
setting of system parameters)
HiGain
HDSL2
Use MODE and SEL to manually modify user options,
H initiate loopbacks, and display DSX-1 line parameters.
2
1 Press the MODE button for 1 second and release.
T
U
The front panel alternately displays the first
*
C system parameter and its current setting.
3
L
2 Press SEL to step through all possible settings for
1
2E
9
the displayed parameter.
SETUP
S
3 Press MODE to update the parameter and advance
E
L
to the next parameter.
STATUS
4 After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF NO
B message, or press MODE to cancel all changes.
R
G
L MUX DSX-1 port test access jacks
I
N
E Connect standard test equipment.
LINE
B
R
G
L
I
N
BRG
E
Craft port provisioning
To access all system maintenance, provisioning
and performance screens, connect a standard
9-pin terminal cable between the serial port on a PC
and the H2TU-C craft port.
Maintenance Terminal Modem Settings
9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control: OFF
Terminal emulation software: VT-100
Front-Panel Diagnostic Messages
Provides splitting jack access to
(IN) and from (OUT) the HDSL2 span
at the MUX port DSX-1 interface.
Provides non-intrusive bridging jack
access to (IN) and from (OUT) the
HDSL2 span at the MUX port DSX-1
interface. Allows monitoring of the T1
payloads.
-6 -7
or 10 .