ADC HiGain H2TU-C-202 List 3E Manual page 2

Report the following conditions:
ALM LED:
-Solid red when a fuse alarm is present.
-Flashes red once per second while a
local alarm is present.
-Flashes red five times per second while a remote
alarm is present.
-Off when no alarm is present.
LOOP LED:
-Solid green while all HDSL2 spans are up.
-Flashes green once per second during
a loop acquisition on the span.
-Flashes green five times per second when a
margin or loop attenuation threshold is exceeded.
LBK LED:
-Solid yellow when the system is in loopback, NLOC,
or CREM mode.
-Flashes yellow five times per second when the
system is armed.
-Off when the system is not armed and not in
loopback mode.
DSX LED:
-Solid green when DSX-1 signal is present and no
alarm is present.
-Flashes green once per second for BPV, FERR,
UAS, or CRC DSX-1 error.
-Flashes green five times per second when network
side framing or line code provisioning does
not match the DSX-1 signal being received.
-Off when the DSX-1 signal is not present.
L T
OOPBACK ESTING
Initiate loopback testing from the HiGain maintenance menus or use the MODE and SEL
pushbuttons. The inband codes shown below can be sent by a test set.
H2TU-C
DSX-1
1111110
NLOC CREM
1111000
Network
* When enabled, TLOS is an automatic loopback
that occurs with an LOS at the remote DS1 input.
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C.
NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R.
SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R SmartJack
module.
CREM 1111110 DS1 signal from customer is looped back to the customer at the H2TU-C.
CLOC 1111100 DS1 signal from customer is looped back to the customer at the H2TU-R.
Loopdown 11100 Deactivates any of the above loopbacks.
Configuration Options Using Maintenance Terminal
Option Code Description (default values in bold)
EQL Sets the DSX-1 Equalizer to 0 (0 to 132 ft.), 133 (133 to 265 ft.), 266 (266 to 398 ft.),
399 (399 to 532 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.
SPLB xxxx Configures system for generic (GNLB) or special inband loopback commands (A2LB, A3LB, A4LB).
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 pins 22 and 30.
MARG Determines the minimum allowable margin below which a system alarm can occur (5 dB)
0 dB to -15 dB.
DS1 DSX-1 line code = B8ZS, AMI.
CONV H2TU-R frame format conversion = OFF (framing determined by the DS1 FRMG option),
ACON (autodetection of framing and potential frame conversion at the H2TU-R), or FCON
(autodetection 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 CI for any network loopback.
TLOS Enables (ENA) or disables (DIS) a logic loopback at the H2TU-R when an LOS occurs at its
DS1 input.
LATT Loop Attenuation Threshold (0 - 40 dB). Default = 32 dB.
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, NAIS 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.
ROVR Enables (ENA) or disables (DIS) conversion of an ESF DS1 payload from the network with
an embedded RAI pattern to an SF-RAI pattern towards the CI at the H2TU-R. CONV
option must be set to FCON or ACON.
RACI Enables (ENA) or disables (DIS) conversion of a DS1 SF-RAI signal received by the H2TU-R
to an SF-RAI-CI signal towards the network.
HiGain
HDSL2
List number
L
3E
H
H 2
ALM
Status LEDs
T
D
U
S
LOOP
*
L
C
2 2
0
2
LBK
DSX
D
S
X
1
IN
l
BRG
l
OUT
RS-232
DCE
Card handle
(CLEI code label
on outside of handle)
H2TU-R
DS1
TLOS*
NREM
CLOC
1111100
1110000
11000
SMJK
Customer
Premises
Configuration Switch Bank (located on the board)
DSX-1 EQL Equalization
(switches 1-4)
AMI/B8ZS Line code
(switch 5)
LBTO Loopback timeout
(switch 6)
Ft1 Fractional T1
(switch 7)
LCL/SPAN Local/Span Powering
(switch 8)
DSX-1 test access jacks
Connect standard test equipment.
BRG
Provides non-intrusive bridging jack
access to (IN) and from (OUT) the
HDSL2 span at the DSX-1 interface.
Allows monitoring of the T1 payloads.
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: VT100
C
ONFIGURATION
The H2TU-C-202 List 3E does not have a display or MODE and
SEL pushbuttons. Set the switches on the on-board switch
bank or access the maintenance terminal screens through the
craft port to make configuration changes.
The H2TU-C-202 List 3E has a configuration switch bank containing eight switches
(located on the printed circuit card). The switches are shown and described below in both
the switch number and switch button figure and the Switch Descriptions table.
Leftmost Switch Position Options
Sets the equalizer to 133 to 265 feet
Sets the equalizer to 266 to 398 feet
-6 -7
or 10 .
Sets the equalizer to 399 to 532 feet
Sets the equalizer to 533 to 655 feet
Selects the DSX-1 line code Alternate Mark
Inversion (AMI)
Enables the Loopback Timeout (LBTO) for
120 minutes
Enables Fractional T1 (FT1) loopback
capability
Configures the system for Line powering
(a) Only one of the DSX-1 line equalization switches (1 - 4) can be selected at a time. If more than one switch
is enabled, the lowest value setting has priority.
For more detailed information about the HiGain HDSL2 screens, provisioning, and
loopback testing, refer to the H2TU-C-202 List 3E technical practice, document number
LTPH-TP-1005-xx. Contact Customer Service to obtain a copy of the practice.
To comply with the intrabuilding wiring requirements of
GR-1089 CORE, Section 4.5.9, the shields of the ABAM-type
cables that connect the H2TU-C-202 DSX-1 output ports to the
cross-connect panel must be grounded at both ends.
Card-Edge Connector
56 55
54 53
52 51
50 49
48 47 DS1 Ring1
Management bus
46 45
44 43
42 41 DS1 Tip1
40 39
38 37
Factory use only
36 ( - )
35
34 33
32 31
30 29
28 27 Chassis ground*
Alarm
Fuse alarm
26 25
24 23
22 21
Factory use only
20 19
18 17 Circuit ground
16
15 HDSL2 Ring
14
13 DS1 Ring
12 11
10 9
8 7
DS1 Tip
6 5
HDSL2 Tip
4 3
2 1 Chassis ground*
*Chassis ground may be tied to earth ground per local practice.
Note: Active pins are highlighted in black.
Switch Descriptions (default values in bold)
Switch
Rightmost Switch Position Options
Number
(a)
1 0
(a)
2 0
(a)
3 0
(a)
4 0
5 Selects Bipolar with 8-Zero Substitution
(B8ZS)
6 Disables LBTO
7 Disables FT1 loopback capability
8 Configures the system for Span powering
DSX-1 Out
-48Vdc Local Power
( + )
HDSL2
DSX-1 In
Span