PULSECOM O3-4D1B User manual

Practice Section 1659
Issue 3, January 2011
OC3 TO DS1 MULTIPLEXER
O3-4D1B
Multiple Patents Pending
Trademarks used in this manual:
AMP and CHAMP are trademarks of AMP Incorporated.
CLEI is a trademark of Telcordia Technologies, Incorporated.
ETL Listed is a registered certification mark of Intertek Testing Services NA, Incorporated.
Microsoft and Windows are registered trademarks of Microsoft, Incorporated.
Pulsecom is a registered trademark of Hubbell Incorporated.
The Pulsecom Fiber Backhaul logo is a trademark of Pulse Communications, Incorporated.
©2011 Pulse Communications Incorporated. All rights reserved.
1
CONTENTS PAGE
1. INTRODUCTION............................................... 2
A. Reason for Reissue........................................ 2
B. Description...................................................... 2
C. Features.......................................................... 2
2. APPLICATIONS ................................................ 4
3. FUNCTIONAL DESCRIPTION.......................... 5
A. OC3 Circuitry.................................................. 5
B. DS1 Circuitry................................................... 5
C. Local Alarms................................................... 6
4. INSTALLATION................................................. 8
A. Controls and Indicators................................... 9
B. Select and Install Mounting .......................... 12
C. Make Power and Alarm Connections ........... 13
D. Install Transceiver and Module..................... 14
E. Make OC3 Connections ............................... 15
F. Make DS1 Connections................................ 16
5. CRAFT PORT.................................................. 17
A. Access.......................................................... 17
B. Configure Operating Mode ........................... 19
C. Provisioning.................................................. 20
D. Performance Monitoring ............................... 23
E. Alarms........................................................... 25
F. Manual Loopbacks ....................................... 26
6. DCC TL1 SUPPORT ....................................... 27
7. SPECIFICATIONS........................................... 27
8. MAINTENANCE .............................................. 29
9. CUSTOMER SERVICE ................................... 30
R
X
CRAFT
RS-232
DS1
DS1
OC3
UNIT
4
3
1
ENABLE
2
O3-4D1B
T
X

Figure 1. O3-4D1B Unit

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1659, Issue 3, January 2011
2
1. INTRODUCTION
This practice describes the Pulsecom®O3-4D1B OC3 to DS1 Multiplexer, shown in
Figure 1. Installation instructions and engineering references are included.
A. Reason for Reissue
This practice has been reissued for minor table corrections and to update the procedure
format.
B. Description
The O3-4D1B multiplexes/demultiplexes four DS1 signals from an OC3 optical signal. By
using standard, non-proprietary, virtual tributary VT1.5 and synchronous transport signal
STS-1 mapping, the O3-4D1B provides fiber-to-fiber compatibility with synchronous
optical network (SONET) multiplexers as well as far-end O3-4D1 Series units. The
O3-4D1B operates from +24 VDC or −24 VDC as well as from −48 VDC and will enter
loopback after an enable signal has been present for 5 seconds.
Compared to the O3-4D1A, the O3-4D1B provides alarm indication signal–customer
installation (AIS-CI) and remote alarm indication–customer installation (RAI-CI)
alarming plus network/supplemental performance report messages (NPRM/SPRM) per
American National Standards Institute (ANSI) T1.403. When an O3-4D1B is provisioned
as a central office (CO) unit, it can remotely provision and retrieve alarm and performance
history from a far-end O3-4D1B provisioned as a remote terminal (RT) unit.
O3-4D1B units do not include optical transceivers. Ordering codes for the O3-4D1B
board as well as for available optical transceivers are shown in Table 1.
C. Features
The O3-4D1B provides the following features:
•Supports Universal and, by virtue of VT1.5 OC3 mapping, Integrated network
topologies
•Type 400 network channel terminating equipment (NCTE) mechanics—ideal for
placement at subscriber sites
•DS1 numbers 1, 2, 3, and 4 mapped into STS-1 #1 VT1.5 positions 1, 2, 3, and 4,
respectively
•Compatible 3192-mechanics version available (O3-4D1L3B) that is suitable for
installation in existing 3192 RT shelves; the O3-41L3B craft port can be used to
remotely provision an O3-4D1B
•AIS-CI and RAI-CI alarming per ANSI T1.403
•NPRM and SPRM reporting per ANSI T1.403
•Ability for an O3-4D1B “CO” unit to remotely provision and retrieve alarm and
performance history from a far-end O3-4D1B “RT” unit

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Table 1. O3-4D1B Board and OC3 Transceiver Ordering Codes
Ordering Code
CLEI™
Code
Wave-
length
Link
Loss
Budget
Maximum
Output
Level
Maximum
Input
Level
Number of
Fibers
Type
of Fiber
A. Board (Without Transceiver)
O3-4D1B SOOMAD3A – – – – – –
B. Available Optical Transceivers
SFP-OC3-1471-30 SOOTAGGM 1471 nm*
29 dB 0 dBm −8 dBm 2
Single-
Mode
SFP-OC3-1491-30 SOOTAGKM 1491 nm*
SFP-OC3-1511-30 SOOTAGLM 1511 nm*
SFP-OC3-1531-30 SOOTAGMM 1531 nm*
SFP-OC3-1551-30 SOOTAGNM 1551 nm*
SFP-OC3-1571-30 SOOTAGPM 1571 nm*
SFP-OC3-1591-30 SOOTAGRM 1591 nm*
SFP-OC3-1611-30 SOOTAGSM 1611 nm*
SFP-OC3-1310-19 SOOTAGTM 1310 nm 19 dB −8 dBm −7 dBm 2
SFP-OC3-1550-29 SOOTAGUM 1550 nm 29 dB 0 dBm 0 dBm
SFP-OC3-SF13-13 SOOMAB8A 1310 nm 13 dB −8 dBm 0 dBm 1
SFP-OC3-SF15-13 SOOMAB9A 1550 nm
SFP-OC3-MM13-10 SOOTAHMM 1310 nm 10 dB −14 dBm −14 dBm 2 Multi-Mode
*CWDM
•Climate hardened
•Can be powered from+24 VDC or −24 VDC supplies for cell site applications as well
as from standard −48 VDC sources
•DS1 lightning protection and DC power input surge protection to help assure reliable
service delivery for units installed at cell sites or in other harsh environments
•Plug-and-play default DS1 provisioning [short loops, bipolar with 8-zero substitution
(B8ZS) and extended superframe (ESF)] and simple front-panel switches that enable or
disable each of the four DS1 ports to eliminate the need to use the craft port for most
applications
•Designed to operate as Type 1, 2, 3, 4, or 5 equipment as described in GR-1089-CORE
•DS1 line build-out provisioning for 0 to 655 feet as well as 0 dB, 7.5 dB, and 15 dB
•Support for in-band, ESF data link, and craft port loopback commands
•DS1 superframe (SF), ESF, and unframed (UNF) operation support
•Instant Default feature that permits restoring all settings to their default state without
the need to use the craft port
•Utilizes Pulsecom patented “Optionless SONET” technology to eliminate OC3
provisioning

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•Designed to accept OC3 small form-factor pluggable (SFP) 1310 nm, 1550 nm, and
coarse wave division multiplexing (CWDM) transceivers as well as single fiber and
multi-mode fiber transceivers
•Standard female 50-pin AMP™ CHAMP™ front-panel DS1 connector (ANSI T1.403
Type RJ48H, interface code 04DU9)
•Standard DB-9 RS-232 craft port front-panel jack (9600 baud, 8-bit bytes, no parity, and
one stop bit) to access performance information and advanced provisioning capabilities
•Simple front-panel indicators for OC3, DS1, and UNIT operating status
•Available DC contact closure alarms
•Fiber attenuators not required to perform an optical loopback with a fiber jumper when
using the SFP-OC3-1310-19 transceiver
•Side-by-side mounting compatible with Pulsecom O3D3 and G2 units to support DS1,
DS3, and Gigabit Ethernet (GigE) services
•Craft port display of optical transceiver wavelength, receive power level, and link loss
budget
•SONET data communication channel (DCC) transaction language-1 (TL1) support
2. APPLICATIONS
Figure 2 shows typical O3-4D1B universal and integrated applications.
A. Universal Configuration Providing Cell Site Lightning Protection
With Type 400 O3-4D1B and Type 3192 O3-4D1L3B Units
Figure 2. O3-4D1B Typical Applications

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B. Integrated Configuration With O3-4D1B Units Providing Cell Site Lightning Protection
Figure 2. O3-4D1B Typical Applications (Continued)
3. FUNCTIONAL DESCRIPTION
Up to four DS1 circuits are combined into a single OC3 signal by using VT1.5 and STS-1
mapping; DS1 numbers 1, 2, 3, and 4 are mapped into STS-1 #1 VT1.5 positions 1, 2, 3,
and 4, respectively. The DS1 payload is not modified. Figure 3 shows a functional block
diagram.
A. OC3 Circuitry
The optical interface for the 155 Mbps data stream conforms to the basic SONET structure
defined in GR-253-CORE.
B. DS1 Circuitry
Each DS1 is provisioned for alternate mark inversion (AMI) or B8ZS line coding.
Superframe, extended superframe, or unframed formats are supported.
Each DS1 port is provisioned for digital signal cross-connect (DSX-1) type interface
(short haul), with line build-outs (LBOs) appropriate to service line lengths from 0 to
655 feet as well as 0, 7.5, or 15 dB.
The O3-4D1B detects loss of signal, loss of frame, cyclic redundancy check errors, frame
errors, all ones (alarm indication signal), and line code violations for each DS1 on the drop
side.
The unit is factory-set to enable a 60-minute loopback timeout for the four DS1 lines. The
craft port can be used to selectively inhibit loopback as well as loopback timeout on a
per-DS1 basis. See Section 5, CRAFT PORT, for additional DS1 loopback information.

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Figure 3. O3-4D1B Functional Block Diagram
C. Local Alarms
Tables 2 and 3 provide alarm information for the O3-4D1B.
Table 2. O3-4D1B Alarm Contact Definitions
Lead Pin Alarm Indication
T
R
7
13
Contact closure between these leads indicates OC3 alarm
T1
R1
41
47
Contact closure between these leads indicates DS1 alarm
NOTE:Simultaneous T/R and T1/R1 contact closures indicate internal unit failure or loss
of OC3/DS1 power.

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Table 3. O3-4D1B Alarm Behavior
Alarm
Stimulus
Applied
Unit
LED
State
OC3 DS1
Craft
Port
Message
Alarm Messages
LED
State
Alarm
Contacts
LED
State
Alarm
Contacts
Sent
Toward
OC3 (FE)
Dropped
at
DS1 (NE)
Loss of Power OFF OFF CLOSED OFF CLOSED – – –
Missing OC3
Transceiver RED OFF CLOSED OFF CLOSED MISSING OPTICS OOF AIS
OC3-LOS GREEN RED CLOSED YELLOW OPEN OC3-LOS RDI-L
RDI-P
RDI-V
DS1-RAI3
AIS1
DS1-LOS
from NE GREEN GREEN OPEN RED CLOSED DS1-LOS AIS (AIS-CI disabled)2
AIS-CI (AIS-CI
enabled)2
–
DS1-LOF
from NE GREEN GREEN OPEN RED CLOSED DS1-LOF (NE) OOF –
DS1-AIS
from NE GREEN GREEN OPEN YELLOW OPEN DS1-AIS (NE) AIS (AIS-CI disabled)
AIS-CI (AIS-CI
enabled)
–
DS1-RAI
from NE GREEN GREEN OPEN YELLOW OPEN DS1-RAI (NE) RAI (RAI-CI disabled)
RAI-CI (RAI-CI
enabled)
–
DS1-LOF
from FE GREEN GREEN OPEN YELLOW OPEN DS1-LOF (FE) RAI3OOF
DS1-AIS
from FE GREEN GREEN OPEN YELLOW OPEN DS1-AIS (FE) RAI3AIS
DS1-AIS-CI
from FE GREEN GREEN OPEN YELLOW OPEN DS1-AIS (FE) RAI3AIS-CI
DS1-RAI
from FE GREEN GREEN OPEN YELLOW OPEN DS1-RAI (FE) – RAI
DS1-RAI-CI
from FE GREEN GREEN OPEN YELLOW OPEN DS1-RAI (FE) – RAI-CI
NOTE 1: Using the craft port, the response to an OC3-LOS can be provisioned from the OC3 configuration menu to either send
AIS toward the DS1 drop or to turn off the DS1 transmitter.
NOTE 2: Using the craft port, the response to a DS1-LOS from the near end can be provisioned from the DS1 configuration
menu to either send AIS toward the OC3 or to implement a terminal loopback in which the received DS1 data is
looped back toward the OC3. If the AIS option is selected, AIS-CI will be sent only when the O3-4D1B is
provisioned as a Remote unit and the AIS-CI option is enabled from the DS1 configuration menu.
NOTE 3: When the O3-4D1B is deployed at the network interface, the customer equipment will originate RAI back toward
the network under this condition; RAI-CI will not be generated by the O3-4D1B.
NOTE 4: AIS = Alarm Indication Signal. AIS-CI = Alarm Indication Signal-Customer Installation. FE = Far End.
LED = Light Emitting Diode. LOF = Loss of Frame. LOS = Loss of Signal. NE = Near End. OOF = Out of Frame.
RAI = Remote Alarm Indication. RAI-CI = Remote Alarm Indication-Customer Installation.
RDI = Remote Defect Indication. RDI-L = Remote Defect Indication-Line. RDI-P = Remote Defect Indication-Path.
RDI-V = Remote Defect Indication -Virtual Tributary.

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4. INSTALLATION
DANGER
The O3-4D1B employs Class 1 laser products. To avoid injury, do not look
directly into the optical transceiver or into the fiber cable. Note that the
light is invisible; the optical signal cannot be detected by the eye.
Per GR-1089-CORE June 2006, Section 9.8, the battery return (BR) of this unit does not
have anyinternal connection to the unit's frame and, therefore, may be used in either
DC-C (common bonding and grounding systems) or DC-I (isolated bonding and ground-
ing systems). The chassis ground wire must be at least as large as the wire used for the BR.
WARNINGS
1. This unit includes components that are susceptible to damage from
static electricity. DO NOT handle units without protection from
electrostatic discharge.
2. When not in use, optical connectors must be covered by dust caps to
keep airborne particles off connecting surfaces and to preserve
optimum performance.
3. Always clean fiber plugs with an approved fiber-cleaning product,
following appropriate procedures, before plugging the fiber into the
O3-4D1B.
4. O3-4D1B units can be equipped with long-range transceivers which
produce a higher optical output than the receiver can tolerate. This
capability is intended for applications where long lengths of fiber will
attenuate the signal. If a long-range transceiver is used in an
application with short fibers, a 15 dB attenuator should be installed on
the transmit port to prevent bit errors and possible damage to the
receiver.
5. When connecting the O3-4D1B output to test equipment, verify that
the maximum input level specification of the test equipment is not
exceeded by the O3-4D1B output. Even intermediate-range optics
can produce levels too high for some test equipment, so attenuators
might be required. In general, when connecting the O3-4D1B to test
equipment, Pulsecom recommends a 5 dB attenuator when
intermediate-range optics are installed in the O3-4D1B and a 15 dB
attenuator when long-range optics are installed in the O3-4D1B.
Check the specifications of the test equipment to determine if this
precaution is adequate or necessary.
The O3-4D1B complies with Part 15 of the Federal Communications Commission (FCC)
rules when used in the recommended mountings and installed as described in this manual.
Operation is subject to the following two conditions:
1) This device may not cause harmful interference, and
2) This device must accept any interference received, including interference that may
cause undesired operation.

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A. Controls and Indicators
Front Panel
The front panel of the O3-4D1B provides connection to the OC3 and DS1 signals as well
as the craft port. LEDs show OC3, DS1, and UNIT status. A 4-position DIP switch
enables or disables each DS1. Front-panel controls and indicators are shown in Figure 1 and
described in Table 4.
Table 4. O3-4D1B Front-Panel Controls and Indicators
Connector Function
DS1 50-position, female, AMP CHAMP, RJ48H connector with four DS1 (1-4) interfaces
(see NOTE 1).
RX OC3 input (receive) LC optical connector.
TX OC3 output (transmit) LC optical connector.
CRAFT
RS-232 DB-9 female port for access to PC running HyperTerminal or other VT-100 emulation program.
Switch Function
ENABLE
1, 2, 3, 4 Selects Enable or Disable operation for each DS1 interface.
Indicator Function
UNIT Lights green to show normal unit operation.
Lights red to show unit/configuration failure or no SFP optical module installed.
OC3 Lights green to show that the OC3 signal is connected and operating properly.
Flashes green to show that the OC3 loopback has been activated.
Lights red to show loss of signal, loss of framing, loss of pointer, or out of frame; also
shows SFP optical module failure.
Lights yellow to show far-end trouble for the associated OC3, a non-OC3 transceiver
installed, an optical receive level below the SFP minimum, or an unrecognized
OC3 transceiver (see NOTE 2).
Turns OFF to show no SFP optical module installed.
DS1 Lights green to show that all enabled DS1s are operating properly.
Flashes green to show that one or more DS1 loopbacks have been activated.
Lights red to show a loss of signal or loss of frame on one or more enabled DS1s.
Lights yellow to show that a DS1 alarm indication signal (unframed all ones) has been
detected on any of the DS1s.
Turns OFF to show all DS1 ports are set to disabled.
NOTE 1: Use Pulsecom bail-lock to unterminated cable (AMP-MBL/U50Sxxx, where xxx = cable
length in feet) or, in 3O3D3-CPL2C installations, use a Pulsecom bulkhead cable kit
(CPM-4DS1X).
NOTE 2: The unit will attempt to operate with an unrecognized OC3 transceiver; however; since the
transceiver temperature and distance ranges are not known, this unrecognized part should
be replaced as soon as possible with a transceiver listed in Table 1.

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1659, Issue 3, January 2011
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The DS1 connector has four transmit pairs and four receive pairs; these front-panel
pinouts are listed in Table 5. The following options are available from Pulsecom:
•Matching Dual Shielded Cable Assembly - If desired, order AMP-MBL/U50Sxxx,
where xxx is the cable length in feet. This cable has a male bail-lock connector at one
end and is unterminated (stub) at the other end. See Practice Section 1635 for wiring
information.
•Bulkhead Cable Kit - If desired, order CPM-4DS1X for use in the 3O3D3-CPL2C
locking wall-mounted enclosure. Each kit provides four bulkhead-mounted RJ48C DS1
jacks and a cable that connects these jacks to the O3-4D1B front-panel connector. See
Practice Section 1633 for wiring information.
The front-panel female DB-9 communications interface is an asynchronous VT-100 serial
port. This craft port operates at 9600 baud with 8 bits of data, no parity, no flow control,
and 1 stop bit. Refer to Section 5 for detailed craft port instructions.
Table 5. Front Panel DS1 Connector Pin Assignments
ANSI T1.403 Type RJ48H
Interface Code 04DU9 Pin Signal Pin Signal
1 Ring1 DS1-1 26 Tip1 DS1-1
2 Ring1 DS1-2 27 Tip1 DS1-2
3 Ring1 DS1-3 28 Tip1 DS1-3
4 Ring1 DS1-4 29 Tip1 DS1-4
5–12 −30–37 −
13 Shield 38 Shield
14 Ring DS1-1 39 Tip DS1-1
15 Ring DS1-2 40 Tip DS1-2
16 Ring DS1-3 41 Tip DS1-3
17 Ring DS1-4 42 Tip DS1-4
18–25 −43–50 −
NOTE:Tip/Ring = Signals received from the OC3 fiber link (DS1 TX).
Tip1/Ring1 = Signals transmitted into the OC3 fiber link (DS1 RX)

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Backplane
Backplane pinouts for alarm contacts, power, and ground (GND) are listed in
Table 6.
Table 6. Backplane Pin Assignments
Pin Function Description
55 – –
53 – –
51 – –
49 – –
47 DS1 Alarm Contact Dry Contact
45 – –
43 – –
41 DS1 Alarm Contact Dry Contact
39 – –
37 – –
35 Negative Supply Input IN
33 – –
31 – –
29 – –
27 Frame GND IN
25 – –
23 – –
21 – –
19 – –
17 Positive Supply Input IN
15 – –
13 OC3 Alarm Contact Dry Contact
11 – –
9 – –
7 OC3 Alarm Contact Dry Contact
5 – –
3 – –
1 Frame GND Input

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Figure 4. Switch Positions on the O3-4D1B
Printed Circuit Board
When the local DS1 provisioning needs to be restored to the factory defaults, the instant
default feature can be used. Unplugging the card, changing the position of switch S2-1,
and plugging the card back in return all parameters to their default values. Note that the
initial position of S2-1 is not important; the O3-4D1B detects a change in the position of
S2-1 during power-up as an instruction to restore parameters to their default values.
Switch positions S2-2, S2-3, and S2-4 are not used. See Figure 4.
NOTE
A change to a front panel ENABLE switch position also restores default
provisioning for the DS1 being enabled/disabled.
B. Select and Install Mounting
Table 7 provides a list of the Pulsecom mountings that should be used with the O3-4D1B.
For applications requiring loss-of-power immunity, use redundant power such as that
available with the 2O3D3-19A.
Use standard hardware to securely attach the mounting to the rack, door, wall, or
backboard. See the appropriate Pulsecom Practice for detailed mounting instructions.

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Table 7. Recommended Mountings for O3-4D1B Modules
Model CLEI Code CPR Description Practice No.
2O3D3-19A SOM2300C 204577 Two O3-4D1B positions; rack or backboard mounting; for
central office (CO), controlled environment vault (CEV), hut,
and customer-premises (CPE) applications; −48 VDC input.
1595
O3D3-RT SOM1200G 201617 One O3-4D1B position; rack, door, or backboard mounting;
for cabinet and CPE applications; −48 VDC input. 1574
3O3D3-CPL2A SOM2G00C 209695 One O3-4D1B position in a locking wall enclosure;
−48 VDC input; FRC 357C. 1610
3O3D3-CPL2B SOM7L00A 209695 One O3-4D1B position in a locking wall enclosure;
−48 VDC input; FRC 358C. 1614
3O3D3-CPL2C SOM7J10A 209695 Two O3-4D1B positions in a hinged, locking, wall- or KTU-
mounted enclosure; provision for DS1, DS3, and optical or
metallic Ethernet bulkhead connections with a bulkhead
cable kit (ordered separately); −48V or 24V DC input for cell
site applications; FRC 358C.
1618
CPL2C SOM7J10A 209695 A compact version of the 3O3D3-CPL2C without locking
cover or bulkhead. 1626
NOTE 1: In mountings that allow optional, redundant power inputs, DC voltages should be the same (i.e., do not use a
−48V supply with a +24V supply).
NOTE 2: The 3O3D3-CPL2A and 3O3D3-CPL2B are manufacture discontinued.
C. Make Power and Alarm Connections
Each O3-4D1B module has two DC contact closures available to identify failures.
Follow the steps in Procedure 1 to make power and optional alarm connections.
Procedure 1. Making Power and Optional Alarm Connections
STEP ACTION
1 Connect frame ground according to the appropriate mounting Practice listed
in Table 7.
2 Ensure that power is OFF.
3 Connect the power supply and ground to the proper mounting terminals as
described in the appropriate Practice.
4 Wire local alarms as described in the appropriate Practice.
5 If using the 2O3D3-19A, ensure that SW1 SWITCH TO PROTECT is set to
the OFF position.
6 Turn power ON.

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D. Install Transceiver and Module
Follow the steps in Procedure 2 to install the O3-4D1B transceiver and module.
Procedure 2. Installing the O3-4D1B Transceiver and Module
STEP ACTION
1 Carefully plug the desired SFP transceiver (see Table 1) into its front-panel
socket. Ensure that it snaps into place.
2 Plug an O3-4D1B module into a mounting slot.
3 Verify that the front-panel UNIT indicator is green.
•If the UNIT indicator does not turn on, verify that power is connected to
the mounting and that a good 0.75A fuse is properly installed for the
mounting slot in use.
•If the UNIT indicator is red, verify that the laser transceiver is properly
latched into its socket. If the LED remains red, the O3-4D1B module is
defective and should be replaced.

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E. Make OC3 Connections
O3-4D1B modules have LC optical connectors. Follow the steps in Procedure 3 to make
OC3 connections.
DANGER
Units employ Class 1 laser products. To avoid injury, do not look directly
into the optical transceiver or into the fiber cable. Note that the light is
invisible; the optical signal cannot be detected by the eye.
Procedure 3. Making OC3 Connections
STEP ACTION
1 Before plugging in the OC3 fiber, verify that the O3-4D1B front-panel OC3
indicator is red. If the shelf is properly powered and the OC3 indicator is off
or green, the unit is defective and should be replaced.
2 Remove the protective dust cover from the front-panel OC3 LC jack labeled
RX/TX.
3 Plug in the OC3 fiber cable.
4 If the far-end OC3 connection has already been made, the OC3 indicator
should turn green or, if there is a far-end trouble, turn solid yellow.
If the OC3 indicator remains red:
•Verify that the correct laser transceiver is properly latched into the OC3
socket.
•Verify that fiber cables are in good condition and that fiber connectors are
clean. If required, clean the connectors with special lint-free pads in
accordance with standard procedures.
•Verify that the optical path loss does not exceed the capabilities of the
far-end laser. If so, replace the far-end unit with one designed to support
longer OC3 fiber links.
•If the OC3 indicator remains red, the O3-4D1B module is defective and
should be replaced.

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F. Make DS1 Connections
The O3-4D1B module has a female AMP CHAMP front-panel connector (designed to be
used with a bail-lock connector hood) that follows ANSI T1.403 RJ48H wiring standards.
Pulsecom recommends using one of the following items (ordered separately):
•CPM-4DS1X—When deployed in 3O3D3-CPL2C enclosures, a bulkhead cable kit
provides four integrated RJ48C bulkhead connectors and a short cable to link the
connectors to the O3-4D1B front panel (reference Practice Section 1633).
•AMP-MBL/U50Sxxx—The matching dual shielded cable assembly, xxx feet in length,
has one end terminated by a 50-pin male AMP CHAMP connector equipped with a
bail-lock hood and the other end unterminated (reference Practice Section 1635).
DS1 circuits are suitable for use as Type 1, 2, 3, 4, or 5 interfaces as described in
GR-1089-CORE. See Procedure 4, Table 5, and Figure 1.
Procedure 4. Making DS1 Connections
STEP ACTION
1 Activate the DS1 circuits that are to be used (1, 2, 3, and/or 4) by setting the
appropriate front-panel switch(es) to the ENABLE position. (See Figure 1.)
2 Before plugging in the DS1 cable, verify that the DS1 indicator is red. If the
DS1 indicator is off, yellow, or green, the unit is defective and should be
replaced.
3 Plug in the DS1 cable and engage bail locks.
NOTE
If using the AMP-MBL/U50Sxxx cable and if grounding the cable
shields at the far end, temporarily remove the connector hood and
disconnect the shields. Then reinstall the hood before plugging in and
securing the DS1 cable. (See Practice Section 1635.)
4 If the far-end DS1 cable connection has already been made to an active DS1
device, the DS1 LED should turn green or, if there is a far-end trouble, turn
solid yellow. If the DS1 indicator remains red:
•Verify that the cable is in good condition.
•Verify that the cable length does not exceed 655 feet.
•If the cable length is greater than 133 feet, a PC running HyperTerminal
and an RS-232 cable must be used to provision the cable length. Refer to
Section 5 of this practice.
•Verify that the DS1 equipment at the far end of the DS1 cable is operating
properly.
•If the DS1 indicator remains red, the O3-4D1B module is defective and
should be replaced.
5 Secure the cable to the shelf or backboard.

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5. CRAFT PORT
A. Access
The O3-4D1B is equipped with a CRAFT RS-232 port with VT-100 emulation. See
Figure 5 for port pin assignments.
Figure 5. CRAFT RS-232 Port Pin Assignments
System Requirements
The following items are required for craft access:
•486 PC or better computer with 24 Mbytes minimum of RAM
•Microsoft®Windows® 95 or higher
•HyperTerminal or compatible VT-100 terminal emulation program
•Windows-compatible mouse pointing device
•An available communication (COM) port
•RS-232 standard communications cable

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Running the Terminal Emulation Software
Follow the steps in Procedure 5 to run the terminal emulation software on your PC.
Procedure 5. Running Terminal Emulation Software
STEP ACTION
1 Connect the RS-232 communications cable from the COM1 (or any other
available COM) port on the PC to the 9-pin “D” female connector on the
O3-4D1B front panel.
2 Start Windows (XP setup is described below).
3 From the Windows Start menu, choose All Programs•Accessories•
Communications•HyperTerminal (or equivalent terminal emulation program).
4 If desired, click the Yes button in the Default Telnet Program? dialog box to
select HyperTerminal as your default telnet program.
5 At the ‘Name:’ prompt in the Connection Description dialog box, type
O3-4D1B. Then select an icon that you wish to represent the O3-4D1B to
simplify future access. Next click the OK button to display the Connect To
dialog box.
6 At the ‘Connect using:’ prompt, select “COM1” (or other appropriate port
number, as chosen in Step 1) from the pull-down menu.
7 Click the OK button to display the COM1 Properties dialog box. Using the
pull-down menus, select the following parameters:
A) “9600” bits per second
B) “8” data bits
C) “None” parity
D) “1” stop bit
E) “None” flow control
8 Click the OK button.
9 From the File•Properties menu, choose the Settings tab to select the following
parameters:
A) At the ‘Function, arrow, and ctrl keys act as’ prompt, select “Terminal
keys.”
B) At the ‘Emulation’ prompt, select “VT100” from the pull-down menu.
10 Click the OK button and then hit the ENTER key to access login.

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Login
If necessary, press the ENTER key to view the Login screen. The system asks for a
user name and password for authentication. Follow the steps in Procedure 6.
Procedure 6. Logging In
STEP ACTION
1 At the ‘User Name:’ prompt, type root. Then hit the ENTER key.
2 At the ‘Password:’ prompt, type root. Then hit the ENTER key.
NOTE
User Name and Password are preset. Both responses are case-sensitive;
use lower-case letters only.
Root (admin access) can view and modify all values. After passing authentication, users
login to the Main Menu.
B. Configure Operating Mode
Select instructions for either bookend or integrated operation.
For Bookend Operation
Bookend operation is the factory-default configuration.
The simplest way to restore default provisioning is to use the “instant default” capability
described in Section 4A and shown in Figure 4. To manually change a unit configured for
integrated operation to bookend operation, perform the steps in Procedure 7.
Procedure 7. Manually Provisioning a Unit for Universal Operation
STEP ACTION
1 From the Main Menu, select Configuration Manager. Press the ENTER key.
2 From the Configuration Manager Menu, select Retrieve and Set DCC
Provisioning. Press the ENTER key.
3 From the Configure DCC Menu, select Data Link Layer (LAPD). Press the
ENTER key.
4 From the Configure LAPD Menu, select Restore Default Settings. Press
the ENTER key.
5 Hit the q key to return to previous menus.

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For Integrated Operation
Follow the steps in Procedure 8 to set the target identification (TID). This action is
required to enable the O3-4D1B to communicate with a remote network operations center
(NOC) over a TL1 DCC link with a higher-order SONET multiplexer. Although the
O3-4D1B (when provisioned for RT operation) has a defaultTID of PULSECOM2, a
unique TID should be assigned to each O3-4D1B when these units are used in the
integrated mode as part of a larger network.
Procedure 8. Setting the Target Identification for Integrated Operation
STEP ACTION
1 From the Main Menu, select Configuration Manager. Press the ENTER key.
2 From the Configuration Manager Menu, select Retrieve and Set DCC
Provisioning. Press the ENTER key.
3 From the Configure DCC Menu, select TID. Press the ENTER key.
4 From the Configure TID Menu, select TID. Enter up to 20 characters to
establish a unique target ID for this O3-4D1B. Press the ENTER key.
5 Next select Apply New Settings and press the ENTER key. The message
“Tarp TID is changed” should appear near the bottom of the screen.
6 Hit the q key to return to previous menus.
C. Provisioning
Provisioning is performed via Configuration Manager sub-menus. Table 8 shows most
provisionable features and factory-set default settings.