PULSECOM O3-12D1D User manual

Practice Section 1665
Issue 6, April 2013
OC3 TO DS1 MULTIPLEXER
O3-12D1D
Multiple Patents Pending
Trademarks used in this manual:
AMP and CHAMP are trademarks of TE Connectivity.
CellPak is a trademark and Westell is a registered trademark of Westell, Incorporated.
CLEI is a trademark of Telcordia Technologies, 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.
©2013 Pulse Communications Incorporated. All rights reserved.
1
CONTENTS PAGE
1. INTRODUCTION................................................1
A. Reason for Reissue.........................................2
B. Description ......................................................2
C. Features..........................................................2
2. APPLICATIONS.................................................4
3. FUNCTIONAL DESCRIPTION...........................6
A. OC3 Circuitry...................................................6
B. DS1 Circuitry...................................................7
C. Local Alarms....................................................7
4. INSTALLATION..................................................9
A. Tower Recommendations .............................10
B. Controls and Indicators .................................11
C. Select and Install Mounting...........................14
D. Make Power and Alarm Connections............16
E. Install Transceiver and Module .....................16
F. Make OC3 Connections................................17
G. Make DS1 Connections.................................18
5. CRAFT PORT ..................................................19
A. Access the Craft Port ....................................19
B. Configure Operating Mode............................21
C. Provisioning...................................................22
D. Performance Monitoring................................25
E. Alarm Messages............................................26
F. Manual Loopbacks........................................27
6. DCC TL1 SUPPORT........................................29
7. SPECIFICATIONS ...........................................30
8. MAINTENANCE...............................................31
9. CUSTOMER SERVICE....................................32
1. INTRODUCTION
This practice describes the Pulsecom®O3-12D1D OC3 to DS1 Multiplexer, shown in Figure 1. Installation
instructions and engineering references are included.
Figure 1: O3-12D1D Unit

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A. Reason for Reissue
This practice has been reissued to revise Section 1C, Features.
B. Description
The O3-12D1D converts 12 DS1 signals into an OC3 optical signal. By using standard, non-proprietary,
virtual tributary (VT1.5) and synchronous transport signal (STS-1) mapping, the O3-12D1D provides fiber-
to-fiber compatibility with synchronous optical network (SONET) multiplexers as well as far-end O3-12D1D
units.
The O3-12D1D 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 O3-12D1D
is provisioned as a central office (CO) unit, it can remotely provision and retrieve alarm and performance
history from a far-end O3-12D1D provisioned as a remote terminal (RT) unit.
O3-12D1D units are not shipped with optical transceivers installed. Ordering codes for the O3-12D1D board
as well as for the available optical transceivers are shown in Table 1.
NOTE
Throughout the remainder of this practice, “O3-12D1D” will refer to the unit with its
transceiver installed, unless otherwise noted.
C. Features
The O3-12D1D provides the following features:
•Supports 24 VDC and 48 VDC input voltage
•GR-3108-CORE Class 3 climate hardening, including –40° to +70°C operation
•Plug-in replacement for an O3-4D1 Series unit to triple capacity in existing mountings
•Supports Universal and, by virtue of VT1.5 OC3 mapping, Integrated network topologies
•SONET data communication channel (DCC) transaction language-1 (TL1) support
•AIS-CI and RAI-CI alarming per ANSI T1.403
•NPRM and SPRM reporting per ANSI T1.403
•Ability for an O3-12D1D “CO” unit to remotely provision and retrieve alarm and performance history
from a far-end O3-12D1D “RT” unit, and vice versa
•Alarm generation if the receive optical signal level falls below the minimum specified small form-factor
pluggable (SFP) operating level so that technicians are aware performance might be impaired
•Type 400 network channel terminating equipment (NCTE) mechanics — ideal for placement at
subscriber sites and in existing or new Westell®CP528 outside plant (OSP) enclosures equipped with
a Pulsecom CSSI Kit

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Table 1 — O3-12D1D 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)
O3-12D1D SOOMACLA – – – – – –
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
•True SONET mapping — Within the first STS-1:
— VT Group #1 carries DS1 #1, #2, #3, and #4, in that order
— VT Group #2 carries DS1 #5, #6, #7, and #8, in that order
— VT Group #3 carries DS1 #9, #10, #11, and #12, in that order
•Suitable for use with OSP wire pairs when installed as Type 3 equipment; Type 5 [equipment
with integrated primary protection (EIPP) as described in GR-1089-CORE and this practice]; and
Type 2 or 4 equipment
•Plug-and-play default DS1 provisioning [short loops, bipolar with 8-zero substitution (B8ZS) and
extended superframe (ESF)] to eliminate the need to use the craft port for most applications
•0 to 655 feet as well as 0, 7.5, and 15 dB DS1 port line build-out (LBO) provisioning
•Support for in-band, ESF data link, and craft port loopback commands
•DS1 superframe (SF), ESF, and unframed operation support
•Instant Default feature that permits restoring all settings to their default state without the need to use the
craft port
•Utilizes Pulsecom “Optionless SONET” technology to eliminate OC3 provisioning
•Designed to accept OC3 single-fiber (bidirectional), 1310 nm, 1550 nm, and coarse wave division
multiplexing (CWDM) SFP transceivers

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•Standard female 50-pin AMPTM CHAMPTM 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
•Craft port readout of incoming optical level
•Available Type 400 mechanics 4-port version (O3-4D1 Series) for plug-in scalability and lower circuit
count applications to provide clear economies (4-port version has same AMP CHAMP connector and
RJ48H wiring as 12-port version)
•Alarm indication signal and DC contact closures to aid end-to-end sectionalization
•Simple front-panel indicators for OC3, DS1, and UNIT operating status
•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-MO, O3-3D3D, O3-12D1G, and other similar
units to support DS1, DS3, and 10/100/1000 Mb Ethernet services
2. APPLICATIONS
Figure 2 shows typical O3-12D1D multiplexer (mux) universal and integrated applications.
A. Bookend Example
Figure 2: O3-12D1D Typical Applications

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B. Integrated Example
C. Migrating from Copper to Fiber-Fed DS1s Example
Figure 2:O3-12D1D Typical Applications (Continued)

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3. FUNCTIONAL DESCRIPTION
Up to 12 DS1 circuits are combined into a single OC3 signal by using VT1.5 and STS-1 mapping. Within the
first STS-1, VT Group #1 carries DS1 #1, #2, #3, and #4, in that order; VT Group #2 carries DS1 #5, #6, #7,
and #8, in that order; and VT Group #3 carries DS1 #9, #10, #11, and #12, in that order. 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 SONET structure defined in GR-253-
CORE.
Figure 3: O3-12D1D Functional Block Diagram

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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 pulse template meets ANSI T1.102.
Each DS1 port is provisioned for digital signal cross-connect (DSX-1) type interface (short haul), with line
build-outs appropriate to service line lengths from 0 to 655 feet as well as 0, 7.5, or 15 dB.
The O3-12D1D detects loss of signal, AIS, RAI, and line code violations for each DS1 on the drop side.
High levels of bipolar violations (BPVs) are tracked in the craft port as code violations – line level (CV-L).
The unit is factory-set to enable a 60-minute loopback timeout for the 12 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.
C. Local Alarms
Table 2 and Table 3 provide alarm information for a universal configuration. For alarm conditions in TL1
between the O3-12D1D and a higher-order multiplexer, see Pulsecom Practice Section 1639. Also refer to
Section 5E, Alarm Messages.
Table 2 — O3-12D1D 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 — O3-12D1D 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 – AIS
OC3-LOS GREEN RED CLOSED YELLOW OPEN OC3-LOS RDI-L
RDI-P
RDI-V
DS1-RAI3
AIS1
OC3 Low
RX PWR GREEN YELLOW OPEN GREEN OPEN OC3: RX PWR – –
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

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Table 3 — O3-12D1D Alarm Behavior (Continued)
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)
DS1-Excessive
BPVs GREEN GREEN OPEN YELLOW OPEN DS1 Excessive
BPVs
– –
Fan Environ-
mental Alarm YELLOW GREEN OPEN GREEN OPEN Tempera- ture Too
High
– –
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 O3-12D1D is
provisioned as a Remote unit and the AIS-CI option is enabled from the DS1 configuration menu.
NOTE 3: When the O3-12D1D 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 O3-12D1D.
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.
4. INSTALLATION
The O3-12D1D 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.
DANGER
The O3-12D1D 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 any internal
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 grounding systems). The chassis ground wire must be at least as
large as the wire used for the BR.

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For Type 5 (EIPP) applications, the O3-12D1D is to be installed in an electronic equipment cabinet (EEC)
and have its DS1 ports connected with cabling that does not exceed 1 meter (3.3 feet) in length to Bourns
303M-09H3GH 5-pin or equivalent protectors inserted in an approved 5-pin protector block. Bourns 303M-
09H3GH or equivalent protectors are also to be used in Type 3 applications in accordance with local
procedures. The Bourns protectors, protector block, and cabling are not supplied with the O3-12D1D. When
installed in an EEC in this fashion, the following GR-1089-CORE Warning applies:
EIPP WARNING
The equipment (O3-12D1D, 303M-09H3GH 5-pin or equivalent primary protectors, 5-pin
protector block, and interconnecting cable) may be located in an EEC as long as the
installation does not employ separate (additional) primary protectors for the same OSP
cable used to provide connections to the O3-12D1D DS1s. EIPP installations such as
these, which include integrated primary protection, are not suitable for central office and
network locations that contain other primary protection for the same OSP cable [such as
controlled environment vaults (CEVs) or huts]. For the purposes of determining placement
and location of fuse links or fuse cable, the equipment shall be treated as a fuse-less
protector, regardless of capability to provide fusing. Note that the Warning above applies
to EIPP applications; in other applications, the O3-12D1D may be installed in COs, huts,
CEVs, customer-premises equipment (CPE), and similar locations as Type 2, 3, or 4
equipment.
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 O3-12D1D.
4. O3-12D1D 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 O3-12D1D optical output to test equipment, verify that the
maximum input level specification of the test equipment is not exceeded by the O3-
12D1D output. Even intermediate-range optics can produce levels too high for some
test equipment, so attenuators might be required. In general, when connecting the
O3-12D1D to test equipment, Pulsecom recommends a 5 dB attenuator when
intermediate-range optics are installed in the O3-12D1D and a 15 dB attenuator when
long-range optics are installed in the O3-12D1D. Check the specifications of the test
equipment to determine if this precaution is adequate or necessary.
A. Tower Recommendations
When deployed at locations like cell sites or broadcast towers that are particularly susceptible to lightning
strikes, Pulsecom recommends the use of 5-pin primary protectors with 5-ohm heat coils, such as Bourns part
number 303M-09H3GH or equivalent, for added lightning protection.

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NOTES
1. While the O3-12D1D meets GR-1089-CORE OSP criteria, equipment at cell or
broadcast towers may be exposed to lightning surges that exceed those characterized
by GR-1089-CORE tests. In these applications, the recommended 5-ohm heat coil
works with circuitry in the O3-12D1D to provide protection from surges with
substantially higher energy.
2. Long copper circuits that parallel power lines may experience inductive currents that
can cause heat coils to fuse open. This situation is not an issue in the recommended
cell site or broadcast tower applications since the copper pair drop circuit is normally
less than 100 feet.
B. Controls and Indicators
Front Panel
The front panel of the O3-12D1D provides connection to the OC3 and DS1 signals as well as the craft port.
LEDs show OC3, DS1, and UNIT status. Front-panel connectors and indicators are shown in Figure 1 and
described in Table 4.
The front-panel DS1 connector has 12 transmit pairs and 12 receive pairs. These DS1 pinouts are listed in
Table 5.
The following options are available from Pulsecom:
•Dual 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 installation instructions.
•Bulkhead Cable Kit — If desired, order the CPM-12DS1X cable kit for use in the 3O3D3-CPL2C wall-
mounted enclosure or for use with BP-19 or BP-23 rack-mounted bulkhead plates and the 2O3D3-19A
rack-mounted shelf. Each kit provides 12 bulkhead-mounted RJ48C DS1 jacks and a cable that connects
these jacks to the O3-12D1D faceplate connector. See Practice Section 1634 for installation instructions.

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Table 4 — O3-12D1D Front-Panel Connectors and Indicators
Connector Function
DS1 50-position, female, AMP CHAMP, RJ48H connector with twelve DS1 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.
Indicator Function
UNIT Lights green to show normal unit operation.
Lights red to show unit/configuration failure or no SFP optical module installed.
Lights yellow to show a fan environmental alarm.
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 on one or more enabled DS1s.
Lights yellow to show that a DS1 alarm indication signal (unframed all ones) has been
detected or if BPVs exceed 10-4 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 use Pulsecom bulkhead cable kit (CPM-12DS1X) in 3O3D3-CPL2C installations, or in
2O3D3-19A installations with BP-19/BP-23 rack-mounted bulkhead plates.
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.
The front-panel 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.
Backplane
Backplane pinouts for alarm contacts, power, and ground (GND) are listed in Table 6.

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Table 5 — Front-Panel DS1 Connector Pin Assignments
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 Ring1 DS1-5 30 Tip1 DS1-5
6 Ring1 DS1-6 31 Tip1 DS1-6
7 Ring1 DS1-7 32 Tip1 DS1-7
8 Ring1 DS1-8 33 Tip1 DS1-8
9 Ring1 DS1-9 34 Tip1 DS1-9
10 Ring1 DS1-10 35 Tip1 DS1-10
11 Ring1 DS1-11 36 Tip1 DS1-11
12 Ring1 DS1-12 37 Tip1 DS1-12
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 Ring DS1-5 43 Tip DS1-5
19 Ring DS1-6 44 Tip DS1-6
20 Ring DS1-7 45 Tip DS1-7
21 Ring DS1-8 46 Tip DS1-8
22 Ring DS1-9 47 Tip DS1-9
23 Ring DS1-10 48 Tip DS1-10
24 Ring DS1-11 49 Tip DS1-11
25 Ring DS1-12 50 Tip DS1-12
NOTE: Tip/Ring = Signals received from the OC3 fiber link
(DS1 TX).
Tip1/Ring1 = Signals transmitted into the OC3 fiber
link (DS1 RX).
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 O3-12D1D
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.
ANSI T1.403 Type RJ48H
Interface Code04DU9

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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 Chassis 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 Chassis GND Input
C. Select and Install Mounting
Table 7 provides a list of the mountings that should be used with the O3-12D1D. For applications requiring
loss-of-power immunity, use redundant power such as that available with the 2O3D3-19A REVB.
Use standard hardware to securely attach the mounting to the rack, door, wall, or backboard. See the
appropriate Pulsecom Practice Section for detailed mounting instructions.

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Figure 4: Switch Positions on the O3-12D1D
Table 7 — Recommended Mountings for O3-12D1D Modules
Model CLEI Code CPR Description Practice No.
2O3D3-19A
REVB SOM2300C 204577 Two O3-12D1D positions; rack or backboard mounting; for CO, CEV, hut, and CPE applications; 24 VDC or −48 VDC
input.
1672
O3D3-RT
REVB SOM1200G 201617 One O3-12D1D position; rack, door, or backboard mounting; for cabinet and CPE applications; 24 VDC or −48 VDC input. 1690
3O3D3-CPL2C
REVB SOM7J10A 209695 Two O3-12D1D positions in a locking, hinged, wall-mounted or KTU rack- mounted enclosure; provision for DS1 bulkhead
connections with a bulkhead cable kit (ordered separately);
−48 VDC or 24 VDC input for cell site and CPE applications;
FRC 358C.
1678
CP528 Westell
Enclosure NCM1FEEC – Provision for one O3-12D1D; subscriber 24 VDC, local −48 VDC, Pulsecom 120 VAC to −48 VDC Power Node with
battery backup, or Pulsecom Span Power units. A Pulsecom
CSSI broadband upgrade kit must be installed in the CP528.
1649,
1680
NOTE: When using redundant power inputs, DC voltages should be the same (i.e., do not use a −48V supply
with a +24V supply).

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D. Make Power and Alarm Connections
Each O3-12D1D module uses two DC contact closures to identify failures.
Follow the steps in Procedure 1 to make power and 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 REVB or 3O3D3-CPL2C REVB, ensure that SW1
SWITCH TO PROTECT is set to the OFF position.
6 Turn power ON.
E. Install Transceiver and Module
Follow the steps in Procedure 2 to install the O3-12D1D transceiver and module.
Procedure 2. Installing the O3-12D1D 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 the O3-12D1D module into the desired mounting.
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 O3-12D1D module is defective and
should be replaced.

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F. Make OC3 Connections
O3-12D1D 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 O3-12D1D front-panel OC3
indicator is red. If 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.
3 Plug in the OC3 fiber cables equipped with LC male connectors until they snap
into place. Use proper fiber cable routing practices.
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 O3-12D1D module is defective and
should be replaced.

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G. Make DS1 Connections
The O3-12D1D 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-12DS1X — When deployed in 3O3D3-CPL2C enclosures or in 2O3D3-19A shelves with BP-19
or BP-23 rack-mounted bulkhead plates, this bulkhead cable kit provides 12 integrated RJ48C bulkhead
connectors and a short cable to link the connectors to the O3-12D1D front panel (reference Practice
Section 1634).
•AMP-MBL/U50Sxxx — A dual 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).
See Procedure 4, Table 5, and Figure 1.
Procedure 4. Making DS1 Connections
STEP ACTION
1 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.)
2 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 O3-12D1D module is defective and
should be replaced.
3 Secure the cable to the shelf or backboard.
*The DS1 must be enabled by using the craft port. See Section 5.

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5. CRAFT PORT
The unit’s craft port provides local and remote access to O3-12D1D operation and provisioning. The craft
port can be connected to a terminal emulator to permit network operations center (NOC) access to
O3-12D1D provisioning and performance data via TL1 commands (see Pulsecom Practice Section 1639).
A. Access the Craft Port
The O3-12D1D 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 DB-9 connector on the O3-12D1D 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 O3-12D1D.
Then select an icon that you wish to represent the O3-12D1D 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.