PULSECOM O3-4D1A User manual

Practice Section 1619
Issue 3, November 2008
1
Figure 1. O3-4D1A Unit
CONTENTS PAGE
1. INTRODUCTION . . ..................... 2
A. ReasonforReissue.................. 2
B. Description......................... 2
C. Features........................... 2
2. APPLICATIONS. . . ..................... 4
3. FUNCTIONAL DESCRIPTION............. 5
A. OC3Circuitry....................... 5
B. DS1Circuitry....................... 6
C. LocalAlarms....................... 6
4. INSTALLATION........................ 9
A. ControlsandIndicators.............. 10
B. Select and Install Mounting ........... 13
C. Make Power and Alarm Connections . . . 14
D. InstallTransceiverandModule........ 15
E. Make OC3 Connections. ............. 16
F. MakeDS1Connections.............. 17
5. CRAFTPORT ........................ 18
A. Access........................... 18
B. Provisioning....................... 20
C. PerformanceMonitoring ............. 22
D. Alarms........................... 24
E. Manual Loopbacks.................. 26
6. SPECIFICATIONS . .................... 26
7. MAINTENANCE....................... 27
8. CUSTOMERSERVICE................. 28
OC3 TO DS1 MULTIPLEXER
O3-4D1A
ETL LISTED TELEPHONE EQUIPMENT
TO
UL60950-1, FIRST EDITION,
CAN/CSA C22.2 NO. 60950-1-03
Multiple Patents Pending
Trademarks used in this manual:
AMP and CHAMP are trademarks of AMP Inc.
CLEI is a trademark of Telcordia Technologies, Inc.
ETL Listed is a registered certification mark of Intertek Testing Services NA, Inc.
Microsoft and Windows are registered trademarks of Microsoft, Inc.
Pulsecom is a registered trademark of Hubbell Inc.
©2008 Pulse Communications Inc. All rights reserved.

O3-4D1A
1619, Issue 3, November 2008
2
1. INTRODUCTION
This practice describes the Pulsecom®O3-4D1A OC3 to DS1 Multiplexer, shown in
Figure 1. Installation instructions and engineering references are included.
A. Reason for Reissue
This practice has been reissued to provide ETL Listed Telephone Equipment and redun-
dant power information, to update Table 1, and to improve cable wiring organization.
B. Description
The O3-4D1A 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 O3-4D1A provides fiber-to-fiber compatibility with synchro-
nous optical network (SONET) multiplexers as well as far-end O3-4D1 Series units.
Compared to the O3-4D1, the O3-4D1A 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.
O3-4D1A units do not include optical transceivers. Ordering codes for the O3-4D1A
board as well as for available optical transceivers are shown in Table 1.
C. Features
The O3-4D1A 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
•Available 3192-mechanics version (O3-4D1L3) suitable for installation in existing
3192 remote terminal (RT) shelves
•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

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O3-4D1A
1619, Issue 3, November 2008
•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 operation support
•Instant Default feature that permits restoring all settings to their default state without
theneedtousethecraftport
•Utilizes Pulsecom patent-pending “Optionless SONET” technology to eliminate OC3
provisioning
•Designed to accept OC3 small form-factor pluggable (SFP) 1310 nm, 1550 nm, and
coarse wave division multiplexing (CWDM) transceivers
•Standard female 50-pin AMPTM CHAMPTM front-panel DS1 connector [American
National Standards Institute (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
•Alarms that activate alarm indication signal (AIS) and DC contact closures to provide
end-to-end sectionalization
Table 1. O3-4D1A Board and OC3 Transceiver Ordering Codes
Ordering Code CLEITM Code Wave- length
Link
Loss
Budget
Maximum
Output
Level
Maximum
Input
Level Number of Fibers Type of Fiber
A. Board (Without Transceiver)
O3-4D1ASOOMAB4A——————
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

O3-4D1A
1619, Issue 3, November 2008
4
•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 GigE services
•Craft port display of optical transceiver wavelength, receive power level, and link loss
budget
2. APPLICATIONS
Figure 2 shows typical O3-4D1A universal and integrated applications.
A. Universal Configuration Providing Cell Site Lightning Protection
With Type 400 O3-4D1A and Type 3192 O3-4D1L3 Units
B. Integrated Configuration With O3-4D1A Units Providing Cell Site Lightning Protection
Figure 2. O3-4D1A Typical Applications
SONET Mux
D
S
X
D
S
X
D
S
X
Provider #1
Provider #2
Provider #3
O3-
4
D1L3
O3-
4
D1L3
O3-
4
D1L3
3192
RT
Subscriber(s)
O3-
4
D1
O3-
4
D1
O3-
4
D1
SONET Mux
D
S
X
D
S
X
D
S
X
Provider #1
Provider #2
Provider #3
O3-
4
D1
O3-
4
D1
O3-
4
D1

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O3-4D1A
1619, Issue 3, November 2008
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.
Figure 3. O3-4D1A Functional Block Diagram
Surge
Protection
Power
Converter
Voltage
Input
CPU
EEPROM
RS-232
Driver DB9
LEDs
DIP Switch
OC3 Framer
VT1.5 Mapper
T1 Framer
OC3
LC
DS1
50-Pin
RJ48H
T1
LIU
Transformers
Surge
Protection
Frame Ground
larm
Relays
Instant
Default
Switch

O3-4D1A
1619, Issue 3, November 2008
6
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 (LBOs) appropriate to service line lengths from 0 to
655 feet as well as 0, 7.5, or 15 dB.
The O3-4D1A detects loss of signal, 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.
C. Local Alarms
Tables 2, 3, and 4 provide alarm information for a universal configuration as well as an
O3-4D1A connected to a representative higher-order multiplexer (such as the Lucent
DMXtend). See Figures 4 and 5.
Table 2. O3-4D1A Alarm Contact Definitions
Lead Pin Alarm Indication
T
R7 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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O3-4D1A
1619, Issue 3, November 2008
Table 3. System Alarm Behavior:
Pulsecom O3-4D1L3 to Pulsecom O3-4D1A Configuration
Alarm Stimulus System A Response System B Response
System A DS1-1 LOS DS1 LED (red) / DS1 alarm relay / TX AIS
upstream / DS1-1 LOS alarm in craft port DS1 LED (yellow) / DS1-1 drop AIS / DS1-1 AIS (FE) alarm in craft port
System A DS1-2 LOS DS1 LED (red) / DS1 alarm relay / TX AIS
upstream / DS1-2 LOS alarm in craft port DS1 LED (yellow) / DS1-2 drop AIS / DS1-2 AIS (FE) alarm in craft port
System A DS1-3 LOS DS1 LED (red) / DS1 alarm relay / TX AIS
upstream / DS1-3 LOS alarm in craft port DS1 LED (yellow) / DS1-3 drop AIS / DS1-3 AIS (FE) alarm in craft port
System A DS1-4 LOS DS1 LED (red) / DS1 alarm relay / TX AIS
upstream / DS1-4 LOS alarm in craft port DS1 LED (yellow) / DS1-4 drop AIS / DS1-4 AIS (FE) alarm in craft port
System B DS1-1 LOS DS1 LED (yellow) / DS1-1 drop AIS / DS1-1
AIS (FE) alarm in craft port DS1 LED (red) / DS1 alarm relay / TX AIS upstream / DS1-1 LOS alarm in craft port
System B DS1-2 LOS DS1 LED (yellow) / DS1-2 drop AIS / DS1-2
AIS (FE) alarm in craft port DS1 LED (red) / DS1 alarm relay / TX AIS upstream / DS1-2 LOS alarm in craft port
System B DS1-3 LOS DS1 LED (yellow) / DS1-3 drop AIS / DS1-3
AIS (FE) alarm in craft port DS1 LED (red) / DS1 alarm relay / TX AIS upstream / DS1-3 LOS alarm in craft port
System B DS1-4 LOS DS1 LED (yellow) / DS1-4 drop AIS / DS1-4
AIS (FE) alarm in craft port DS1 LED (red) / DS1 alarm relay / TX AIS upstream / DS1-4 LOS alarm in craft port
System A OC3 LOS OC3 LED (red) / DS1 LED (yellow) / DS1
drop AIS on all ports / TX upstream RDI_L,
RDI_P, and RDI_V / OC3 alarm relay
closure / OC3 LOS and DS1 AIS (NE)
alarms on all ports in craft port
OC3 LED (yellow) / OC3 RDI_L alarm in
craft port / no impact on drop DS1 signaling
System B OC3 LOS OC3 LED (yellow) / OC3 RDI_L alarm in
craft port / no impact on drop DS1 signaling OC3 LED (red) / DS1 LED (yellow) / DS1 drop AIS on all ports / TX upstream RDI_L,
RDI_P, and RDI_V / OC3 alarm relay
closure / OC3 LOS and DS1 AIS (NE)
alarms on all ports in craft port
System A Incorrect Framing
Format at DS1 Interface DS1 LED (red) / DS1 relay closure / DS1-n LOF (NE) alarm in craft port DS1 LED (yellow) / DS1-n LOF (FE) alarm in craft port / framing errors at DS1 drop
side interface
System B Incorrect Framing
Format at DS1 Interface DS1 LED (yellow) / DS1-n LOF (FE) alarm in craft port / framing errors at DS1 drop
side interface
DS1 LED (red) / DS1 relay closure / DS1-n
LOF (NE) alarm in craft port
NOTE: FE = Far End. LED = Light Emitting Diode. LOF = Loss of Frame. LOS = Loss of Signal. NE = Near End.
RDI = Remote Defect Indication. RX = Receive. TX = Transmit.
Figure 4. O3-4D1L3 to O3-4D1A Reference Circuit Configuration
O3-4D1AO3-4D1L3
SYSTEM BSYSTEM A
DS1 #1
DS1 #2
DS1 #3
DS1 #4
DS1 #1
DS1 #2
DS1 #3
DS1 #4

O3-4D1A
1619, Issue 3, November 2008
8
Table 4. System Alarm Behavior:
Pulsecom O3-4D1A to Lucent DMXtend Configuration
Alarm Stimulus System A Response System B Response
System A DS1-1 LOS DS1 LED (red) / DS1 alarm relay / TX AIS
upstream / DS1-1 LOS alarm in craft port DS1-1dropAIS
System A DS1-2 LOS DS1 LED (red) / DS1 alarm relay / TX AIS
upstream / DS1-2 LOS alarm in craft port DS1-2dropAIS
System A DS1-3 LOS DS1 LED (red) / DS1 alarm relay / TX AIS
upstream / DS1-3 LOS alarm in craft port DS1-3dropAIS
System A DS1-4 LOS DS1 LED (red) / DS1 alarm relay / TX AIS
upstream / DS1-4 LOS alarm in craft port DS1-4dropAIS
System B DS1-1 LOS DS1 LED (yellow) / DS1-1 drop AIS / DS1-1
AIS (FE) alarm in craft port DS1 LED (red) / TX DS1-1 AIS upstream
System B DS1-2 LOS DS1 LED (yellow) / DS1-2 drop AIS / DS1-2
AIS (FE) alarm in craft port DS1 LED (red) / TX DS1-2 AIS upstream
System B DS1-3 LOS DS1 LED (yellow) / DS1-3 drop AIS / DS1-3
AIS (FE) alarm in craft port DS1 LED (red) / TX DS1-3 AIS upstream
System B DS1-4 LOS DS1 LED (yellow) / DS1-4 drop AIS / DS1-4
AIS (FE) alarm in craft port DS1 LED (red) / TX DS1-4 AIS upstream
System A OC3 LOS OC3 LED (red) / DS1 LED (yellow) / DS1
drop AIS on all ports / TX upstream RDI_L,
RDI_P, and RDI_V / OC3 alarm relay
closure / OC3 LOS and DS1 AIS (FE)
alarms on all ports in craft port
Minor alarm (RDI_L) configurable / RDI_P
and RDI_V defects detected
System B OC3 LOS OC3 LED (yellow) / OC3 RDI_L alarm in
craft port / no impact on drop DS1 signaling Critical system alarm due to no optical protection / VT AIS alarm on all VTs / drop
AIS alarm on all DS1s
Figure 5. O3-4D1A to DMXtend Reference Circuit Configuration
DMXtendO3-4D1A
SYSTEM BSYSTEM A
DS1 #1
DS1 #2
DS1 #3
DS1 #4
DS1 #1
DS1 #2
DS1 #3
DS1 #4

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O3-4D1A
1619, Issue 3, November 2008
4. INSTALLATION
DANGER
The O3-4D1AemploysClass1optical signals. To avoid injury, do not look
directlyinto the optical transceiver or into the fiber cable. Note that the
light is invisible;the optical signal cannot be detected bythe 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 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 bydust capsto
keepairborne 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
O3-4D1A.
4.O3-4D1Aunitscanbeequipped with long-range transceivers which
produce a higher optical output than the receiver can tolerate. This
capabilityis 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 dBattenuator should be installed on
the transmit port to prevent bit errors and possible damage to the
receiver.
5. When connecting the O3-4D1A output to test equipment, verifythat
the maximum input level specification of the test equipment is not
exceeded bythe O3-4D1A output. Even intermediate-range optics
can produce levels too high for some test equipment, so attenuators
might be required. In general, when connecting the O3-4D1Atotest
equipment, Pulsecom recommends a 5dBattenuator when
intermediate-range opticsareinstalledintheO3-4D1A and a 15 dB
attenuator when long-range optics are installed in the O3-4D1A.
Check the specifications of the test equipment to determine if this
precaution is adequate or necessary.
The O3-4D1A 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.

O3-4D1A
1619, Issue 3, November 2008
10
A. Controls and Indicators
Front Panel
The front panel of the O3-4D1A 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 5.
Table 5. O3-4D1A 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.
Lights red to show loss of signal, loss of framing, loss of pointer, out of frame, or
optical degradation condition;also shows SFP optical module failure or non-OC3
transceiver installed.
Lights yellow to show far-end trouble for the associated OC3 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 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,wherexxx = cable
length in feet) or, in 3O3D3-CPL2C installations, use a Pulsecom bulkhead cable kit
(CPM-4DS1 or 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.

11
O3-4D1A
1619, Issue 3, November 2008
The DS1 connector has four transmit pairs and four receive pairs; these front-panel pinouts
are listed in Table 6. 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-4DS1 or 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 O3-4D1A
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 6. 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).
TIP
RING1 TIP1
RING
1
25
50
26
3
5
7
9
11
13
19
21
17
15
23
32
36
42
40
46
38
44
28
30
34
48
SHIELD
SHIELD

O3-4D1A
1619, Issue 3, November 2008
12
Backplane
Backplane pinouts for alarm contacts, power, and ground (GND) are listed in
Table 7.
Table 7. 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
NEGATIVE SUPPLY INPUT
FRAME GND
POSITIVE SUPPLY INPUT
25
24 23
22 21
20 19
18 17
16 15
14 13
9
87
65
43
21
49
47
45
43
41
39
37
35
33
31
40
44
38
12 11
10
42
36
48
34
50
32
46
30 29
28 27
26
REAR VIEW
CARD-EDGE
CONNECTOR
56
54
52
55
53
51
R1
T1
R
T
DS1 ALARM OR
POWER FAILURE
OC3 ALARM OR
POWER FAILURE
FRAME GND

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O3-4D1A
1619, Issue 3, November 2008
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 returns all parameters to their default values. Note that the
initial position of S2-1 is not important; the O3-4D1A 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 6.
NOTE
A change to a front-panel ENABLE switch position also restores default
provisioning for the DS1being enabled/disabled.
B. Select and Install Mounting
Table 8 provides a list of the Pulsecom mountings that should be used with the O3-4D1A.
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.
Figure 6. Switch Positions on the O3-4D1A
S2
1

O3-4D1A
1619, Issue 3, November 2008
14
C. Make Power and Alarm Connections
Each O3-4D1A module uses two DC contact closures to identify failures.
Follow the steps in Procedure 1 to make power and alarm connections.
Table 8. Recommended Mountings for O3-4D1A Modules
Model CLEI Code CPR Description Practice No.
2O3D3-19A SOM2300C 204577 Two O3-4D1A 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 O3-4D1A position;rack, door, or backboard mounting;
for cabinet and CPE applications;–48 VDC input. 1574
3O3D3-CPL2A SOM2G00C 209695 One O3-4D1A position in a locking wall enclosure;
–48 VDC input;FRC 357C. 1610
3O3D3-CPL2B SOM7L00A 209695 One O3-4D1A position in a locking wall enclosure;
–48 VDC input;FRC 358C. 1614
3O3D3-CPL2C SOM7J10A 209695 Two O3-4D1A positions in a hinged, locking, wall- or
KTU-mounted enclosure;provision for DS1 bulkhead
connections with a bulkhead cable kit (ordered separately);
–48V or 24V DC input for cell site applications;FRC 358C.
1618
NOTE: In mountings that allow optional, redundant power inputs, DC voltages should be the same (i.e., do not usea–48V
supply with a +24V supply).
Procedure 1. Making Power and Alarm Connections
STEP ACTION
1 Connect frame ground according to the appropriate mounting Practice listed
in Table 8.
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 O3-4D1A transceiver and module.
Procedure 2. Installing the O3-4D1A 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 O3-4D1A module into a slot of the 2O3D3-19A, O3D3-RT, or
3O3D3-CPL2 Series 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 O3-4D1A module is
defective and should be replaced.

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16
E. Make OC3 Connections
O3-4D1A modules have LC optical connectors. Follow the steps in Procedure 3 to make
OC3 connections.
DANGER
Units employClass 1optical signals. 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 bythe eye.
Procedure 3. Making OC3 Connections
STEP ACTION
1Beforeplugging in the OC3 fiber, verify that the O3-4D1A 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 O3-4D1A module is defective and
should be replaced.

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1619, Issue 3, November 2008
F. Make DS1 Connections
The O3-4D1A 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-4DS1 or 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 O3-4D1A 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 6, and Figure 1.
Procedure 4. Making DS1 Connections
STEP ACTION
1Beforeplugging in theDS1 cable, 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 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, temporarilyremove the connector hood and
disconnect the shields. Then reinstall the hood before plugging in and
securing the DS1cable. (SeePracticeSection1635.)
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 O3-4D1A module is defective and
should be replaced.
5 Secure the cable to the shelf or backboard.

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18
5. CRAFT PORT
A. Access
The O3-4D1A is equipped with a CRAFT RS-232 port with VT-100 emulation. See
Figure 7 for port pin assignments.
System Requirements
The following items are required for performance monitoring (PM):
•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
Figure 7. CRAFT RS-232 Port Pin Assignments
1
2
3
4
5
9
8
7
6
Tx
Rx

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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
O3-4D1A 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
O3-4D1A. Then select an icon that you wish to represent the O3-4D1A 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.
9FromtheFile
•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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20
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.
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. Provisioning
Provisioning is performed via the Configuration Manager sub-menu. Table 9 shows
provisionable features and factory-set default settings.
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.
Table 9. O3-4D1A Provisioning
Feature Option Default
A. DS1 Provisioning
Name Permits assigning a 12-character name to each DS1 DS1 #
(1,2,3,4)
Framing Format Superframe, extended superframe, or unframed ESF
Line Coding Alternate mark inversion or bipolar with 8-zero substitution B8ZS
Line Build-Out 0–133 ft., 133–266 ft., 266–399 ft., 399–533 ft., 533–655 ft., OR
0, 7.5, or 15 dB 0 to 133 feet
DS1 Loopback Enable or disable Enable
DS1 Loopback Timeout 1, 2, 4, 8, 60 minutes, or none 60 minutes
Response to DS1 Loss of
Signal Send AIS to OC3 (network–fiber) or initiate loopback Send AIS to OC3
Loopdown on AIS Yes or no No
B. OC3 Provisioning
Response to OC3 Loss of
Signal Send AIS to DS1. Turn off DS1 transmitter. Send AIS to DS1
C. Unit Provisioning
Unit Type NT (customer-premises equipment) or LT (central office) side of
network NT (CPE)