NEC of America 58155 User Manual

PREVENTIVE MAINTENANCE ROI-S05751

Chart 4-2 (Cont’d)

Step Procedure

9 Click on “RMON(Line)(7days/day)” sub-menu button in

“PMON (History)”,

---RMON(Line)(1day)--- Maintenance Mode: on

Port1

Date Time Status 1 2 3 4 5 6

Detailed daily Line (LAN) RMON (Remote Network Monitoring) data are
displayed.

Note: For the GbE INTFC, there are distinctions for the

functions from the 10BASE-T/100BASE-Tx, refer to Notes
of above “RMON(Line)(24H/15min)”.

1:

RX UNICAST

2:

RX BROADCAST

3:

RX MULTICAST

4:

RX PAUSE

5:

RX CEC ERR

6:

RX ALIGNMENT ERR

7:

RX SYMBOL ERR

8:

RX UNDERSIZE

9:

RX FRAGMENTS

10:

RX 64

11:

RX 65-127

12:

RX 128-255

13:

RX 256-511

14:

RX 512-1023

15:

RX 1024-1536

16:

RX 1537-MAX

17:

RX JABBERS

18:

TX UNICAST

19:

TX BROADCAST

20:

TX MULTICAST

21:

TX PAUSE

22:

TX COLLISION

4-12
12 pages

ROI-S05751 CORRECTIVE MAINTENANCE

5. CORRECTIVE MAINTENANCE

Corrective maintenance done in the field is described in this chapter.
Corrective maintenance in the field covers fault isolation, module/unit
replacement and alignment. The fault location procedures describes how
to isolate module-level/unit-level faults.

Faults can be classified into those that cause deterioration of the
transmission quality and those that interrupt the traffic due to a
malfunction of the equipment. This chapter explains the troubleshooting
procedures for equipment faults and the corresponding remedial methods.
The purpose of troubleshooting malfunctioning equipment is to restart the
service by locating the faulty part and replacing it with a spare.

The faults that cause deterioration in the transmission quality are primarily
originated by changes occurred in the state of propagation. Therefore, if a
decline in the transmission quality or similar fault takes place frequently,
the link design will have to be reviewed.

5.1 Alarm/Status

During the corrective maintenance, carefully observe the precautions
given in Chapter 2, until the alignment is completed.

When an alarm event has occurred, At first, check alarm indication on the
front of the IDU. Continuously, connect the PC to the LCT jack on the
IDU and check alarm/status indication, Meter Reading on the LCT.

(a) Check of the ALM LED Indications and LCT Indication

A faulty part can be located by checking the ALM LED indicators
and LCT Alarm indications. For the explanation of the ALM LED
indication, refer to Chapter 2 OPERATING EQUIPMENT in
Section II. Also refer to Chapter 2 Alarm/Status in this Section IV
APPENDIX LCT OPERATION.

(b) Meter Readings

Based on the meter readings during periodical inspection with
LCT described in Chapter 4, a faulty part can be located by
checking if the reading values exceed the permissible ranges.

(c) Loopback

In the case of an abnormal BER measurement result among the
meter reading items, try to distinguish the faulty part by Chart

5.1.1 Loopback.

5-1

CORRECTIVE MAINTENANCE ROI-S05751

5.1.1 Alarm and Status

The alarm and status of each module and ODU are displayed.
Each items is explained below.

ODU

TX Power: Indicates the status of the transmitter in the ODU.

When the transmission level is decreased 3 dB or
more from preset ATPC minimum level, “Alarm”
is issued.

TX Input: Indicates the status of the ODU input signal from

IDU. When the input signal from the IDU is lost,
“Alarm” is issued.

RX Level: Indicates the status of the received RF signal level

of the ODU. When the level decreased below the
RX threshold level, “Alarm” is issued.

APC: Indicates the status of the synthesizer in the ODU.

When any abnormality occurs in the synthesizer,
“Alarm” is issued.

ODU CPU/Cable Open:

Indicates the status of the CPU in the ODU or IF
cable, When any abnormality occurs the CPU
operation or IF cable is open, “Alarm” issued.

Mute Status: Indicates the control status of the ODU TX power

output. When the TX power is set to Mute, “On”
is issued.

LO REF (for XPIC in SONET):

Indicates the status of reference LO signal used for
V/H signal synchronization. When the reference
signal in the ODU is lost, “Alarm” is issued.

TX SW Status (for 1+1 configuration):

Indicates the TX SW status for the No. 1 or No. 2
CH selection.

RX SW Status (for 1+1 configuration):

Indicates the RX SW status for the No. 1 or No. 2
CH selection.

5-2

ROI-S05751 CORRECTIVE MAINTENANCE

MODEM

Unequipped:

Indicates the status of the MODEM existence.
When the MODEM is loose contact or it is not
mounted according to the “Equipment Setup”,
“Alarm” is issued.

Module:

Indicates the status of the modulator-demodulator.
When a failure occurred in the modulator­demodulator and as a result of a LSI failure,
“Alarm” is issued.

LOF: Indicates the frame synchronization status.

When the synchronization from DMR is lost,
“Alarm” is issued,

Frame ID: Indicates the status of ID number against

MODEM of opposite station or the other channel
in Twinpath configuration. When ID number
assignment is improper, “Alarm” is issued.

High BER: Indicates the quality severe deterioration status

between radio sections. When the signal
deteriorates below the threshold preset value,
“Alarm” is issued. The settable threshold values
are: 1E-3, 1E-4 and 1E-5.

Low BER: Indicates the quality unsevere deterioration status

between radio sections. When the signal
deteriorates below the preset threshold value,
“Alarm” is issued. The settable threshold values
are: 1E-6, 1E-7, 1E-8 and 1E-9.

Early Warning:

Indicates quality deterioration status. When the
signal deteriorates below the preset threshold
level, “Alarm” is issued. (When the Early Warning
is used for protection switchover in 1+1
configuration, RX Hitless Switch is operated.) The
preset threshold level is less than 1E-9.

MOD: Indicates the operating status of the MOD. When

any failure occurs in the modulator section,
“Alarm” is issued.

DEM: Indicates the operating status of the DEM. When

any failure occurs in the demodulator section,
“Alarm” is issued.

5-3

CORRECTIVE MAINTENANCE ROI-S05751

Input Voltage:

Indicates the power supply input voltage status.
When power supply is exceeding the limited,
“Alarm” is issued.

Power Supply:

Indicates the operating status of the power supply.
When power supply is abnormal, “Alarm” is
issued.

IF Cable Short:

Indicates the status of IF cable between IDU and
ODU. When a short circuit is caused between
ODU and the IDU, “Alarm” is issued.

Cable EQL: Indicates the status of IF cable equalizer. When

equalizer characteristics control is lost, “Alarm” is
issued.

XIF (for XPIC in SONET):

Indicates the status of XIF input signal of the Main
Master IDU and Sub Master IDU. When the XIF
input signal is lost, “Alarm” is issued and XPIC
function is reset.

XPIC Status (for XPIC in SONET):

Indicates the status of XPIC operation. When the
XPIC function is reset, “Reset” is indicated and
the “Reset” LED on the front panel is lit.

XREF (for XPIC in SONET):

Indicates the status of reference CLK signal used
for V/H signal synchronization. When the
reference OSC in the MODEM failure occurs,
“Alarm” is issued.

Linearizer Function:

Indicates the status of linearizer function.

OPR: When the linearizer function is used.

NO OPR:When the linearizer function is not used.

In this case, TX output power decreases
approx. 4 dBm from a standard value.

N/A: When the ODU is used without

linearizer function.

Linearizer: Indicates the linearizer operating status. When

linlearizer operation is improper in OPR condition,
“Alarm” is issued.

5-4

ROI-S05751 CORRECTIVE MAINTENANCE

ATP C P o w e r M od e:

Indicates the status of ATPC operation mode.
When the ATPC function is improper, stop the
control and maintain the TX output level at
HOLD/MAX/MIN selectable.

INTFC (Main/Sub)

INTFC(1/2) Module:

Indicates the operating status of the ( ) INTFC.
When any failure occurs in the INTFC(1/2)
Module, “Alarm” is issued.

INTFC(1) Unequipped:

Indicates the existence status of the ( ) INTFC.
When the ( ) INTFC(1) is not equipped, “Alarm”
is issued.

INTFC(2) Unequipped (for SONET):

Indicates the existence status of the ( ) INTFC.
When the ( ) INTFC(2) is not equipped, “Alarm”
is issued.

INTFC(1/2) Type Mismatch:

Indicates the mounted status of the ( ) INTFC.
When the INTFC(1/2) type is not coincided with
the inventory list, “Alarm” is issued.

INTFC(1) In-Phase:

Indicates the received signal DADE status
between No. 1 and No. 2 at STM/( )E1 INTFC.
When the received signal delay time is out of
permissible range, Outphase alarm is issued.

OC-3(1) LOS (MUX) (for SONET):

Indicates the input signal status of the OC-3 from
MUX. When the input is disconnected, “Alarm” is
issued.

OC-3(1) LOF (MUX) (for SONET):

Indicates the input signal status of the OC-3 from
MUX. When the input signal is out of frame
synchronization, “Alarm” is issued.

E-BER(1) (MUX) (for SONET):

Indicates Excessive-BER of the input OC-3 signal
from MUX. When the signal deteriorates below
the preset threshold level, “Alarm” is issued. The
settable threshold values are 1E-3, 1E-4 and 1E-5.

OC-3(1) SD (MUX) (for SONET):

5-5

CORRECTIVE MAINTENANCE ROI-S05751

Indicates the input signal status of the OC-3 from
MUX. When the signal deteriorates below the
preset threshold level, “Alarm” is issued. The
settable threshold values are 1E-6, 1E-7, 1E-8 and
1E-9.

OC-3(1) LOS (DMR) (for SONET):

Indicates the signal status of the OC-3 from DMR.
When the input is disconnected, “Alarm” is issued.

5-6

ROI-S05751 CORRECTIVE MAINTENANCE

OC-3(1) LOF (DMR) (for SONET):

Indicates the status of the input OC-3 signal from
DMR. When the input signal is out of
synchronization, “Alarm” is issued.

OC-3(1) E-BER (DMR) (for SONET):

Indicates Excessive-BER of the input OC-3 signal
at the Radio side. When the signal deteriorates
below the preset threshold level, “Alarm” is
issued. The setable threshold values are 1E-3, 1E­4 and 1E-5.

OC-3(1) SD (DMR) (for SONET):

Indicates the input signal status of the OC-3 from
DMR. When the signal deteriorates below the
preset threshold level, “Alarm” is issued. The
setable threshold values are 1E-6, 1E-7, 1E-8 and
1E-9.

OC-3(1) TF (for SONET):

Indicates the signal interruption status. Indicates
when MS-AIS Generation is set to “Disable”.
When OC-3 output signal of OC-3 INTFC is
stopped, “Under Execution” is indicated.

LAN Link (Port ( )) (LAN INTFC for SONET):

Indicates the status of Link between related
equipment and Port ( ). Indicates “Link” when the
Port is linked with related equipment and indicates
“Alarm” in other case.

LAN Collision (Port ( )) (LAN INTFC for SONET):

Indicates the status of Collision in Half Duplex
mode. In Full Duplex mode, “Normal” is always
displayed. Indicates status when Port ( ) is in
collision condition.

Link Loss Forwarding (LLF) (Port ( )) (LAN INTFC for

SONET):
Indicates the operating status during the fault in
opposite station or when the link of local Port ( )
LAN is disconnected by the fault of radio section.
When any failure occurs in the MAIN INTFC,
“Alarm” is also issued.

Speed & Duplex: (Port ( )) (LAN INTFC for SONET):

Indicates the operating mode of Port ( ).

CTRL

CTRL Module:

Indicates the operating status of the CTRL. When
any failure occurs in the CTRL Module, “Alarm”

5-7

CORRECTIVE MAINTENANCE ROI-S05751

is issued.

MMC:

Indicates the MMC status. When the mounted
MMC is detected, “On” is displayed.

APS SW Fail (for APS in SONET):

Indicates the APS status of the APS system. When
the APS switchover failure occurs, “Alarm” is
issued.

APS Online Status (for APS in SONET):

Indicates online channel on the APS system.

XCTRL (for XPIC in SONET):

Indicates the status of control signal between Main
Master IDU and Sub Master IDU. When the out of
control condition occurs, “Alarm” is issued.

XPIC Mode Mismatch (for XPIC in SONET):

Indicates the status of the Main Master IDU and
Sub Master IDU definition. When the Main
Master IDU and Sub Master IDU is not defined
properly as like as Main Master-Main Master or
Sub Master-Sub Master, “Alarm” is issued.

5-8

ROI-S05751 CORRECTIVE MAINTENANCE

5.1.2 Control Item

Control items can be selected only under maintenance mode. As this
“Control” is likely to cause disconnection of signal, take care during
operation.

Details of “Control” item is described as follows:

TXSW manual control:

Controls manual switchover of the TX SW at the
transmitting side in the Hot standby (HS)
configuration.

RXSW manual control:

Controls manual switchover of the RX SW in the
1+1 configuration. The switchover is carried out
without traffic interruption when the DADE is In­phase. Adjustment of the delay time of No.1 and
No.2 is automatically set.

Caution: When the RX SW mode is set to “Forced” in

provisioning, RX SW manual control can select
either No. 1 or No. 2 RX route though one is
alarmed. Then, take care switching to avoid traffic
interruption.

ATPC manual control:

Used when it is required ATPC operation ON/OFF
or the change of the transmitting power range in
ATPC operation.

TX mute: Turns off the transmitter output.

CW CONTROL (No.1/2):

Used for transmitting a unmodulated carrier wave
(CW). Used to confirm the TX frequency stability.

APS Manual Control (for APS in SONET):

Controls manual switchover (Auto/Working/
Protection) of the Optical Line in the APS system.

Caution: When the APS Maintenance mode is set to “Forced”

in provisioning, APS Manual Control can select
either Working or Protection line though one is
alarmed. Then, take care switching to avoid traffic
interruption.

IF loopback: Used for distinguish equipment failure to ODU or

IDU. The input traffic signal from MUX is looped
back at IF stage. When no abnormality is found in
the signal after IF loopback, it is assumed that the
ODU has a problem.

5-9

CORRECTIVE MAINTENANCE ROI-S05751

Since the control is not interlocked with the RX
SW, the RX SW control is needed to select CH
which it is IF looped back in 1+1 configuration.

Main Loopback (NEAR END) (for SONET)/
Main Loopback (NEAR END) INTFC (1) or (2) (for SONET

APS)/:
Used for distinguish equipment failure to MUX
equipment or radio equipment. The input signal
from MUX is looped back to the MUX. When no
abnormality is found in the signal with NEAR
END loopback, it is assumed that the radio
equipment (IDU or ODU) has a problem.

Main Loopback (FAR END) (for SONET):

Used for distinguish equipment failure to MUX
equipment or radio equipment. Signal is looped
back at the IDU of the opposite station. When no
abnormality is found in the signal through FAR
END loopback, it is assumed that the local radio
equipment (IDU or ODU) has no problem.

Note: This function is unavailable when 2-WAY/XC is

enabled.

DADE Adjust:

Sets the DADE for Hot Standby SD/Twinpath
configuration. Selects to make INTFC status In­phase.

Notes: 1. The DADE control applies in 1+1 configuration to

adjust delay time for RX hitless switching when the
INTFC status is indicated Outphase.

5-10

ROI-S05751 CORRECTIVE MAINTENANCE

2. The DADE adjustment is needed in initial lineup or
when the IF CABLE is replaced. It is not needed
readjustment when the INTFC status is indicated In­phase.

LAN Device Reset (for LAN transmission only):

Used for reset control to LAN interface Port 1 or
Port 2.

Linearizer Control:

Sets Auto/Forced Reset of linearizer function.

Forced Reset: When the linearizer function is not used.

Auto: When the linearizer function is used.

RF SUB Band select:

Used for changing the ODU sub band for radio
link depending on the RF frequency assignment.

Antenna Alignment Mode:

The Antenna Alignment Mode is used for
extending the dynamic range of the NLITE E
Monitor unit. In order to measure in high range of
AGC V, it is mandatory required to set Antenna
Alignment Mode to ON. If not it set to ON, the
indicated AGC voltage is not guaranteed value.
For the antenna orientation, set the TX power to
the required level by MTPC mode at the opposite
site.

Note: It is necessary to set to Antenna Alignment Mode when

monitor the RX level with the NLITE E Monitor unit.

ALS Restart (for SONET optical interface):

Sets the duration that the laser is emitted when
ALS manual restart for test is performed.

XPIC Control Local (for XPIC in SONET):

Resets the XPIC function for Local IDU when
propagation is deteriorated, either MODEM or
ODU of Main Master or Sub Master is a failure or
perform the link test.

XPIC Control Remote (for XPIC in SONET):

Resets the XPIC function for the IDU in the
opposite station when either MODEM or ODU of
Main Master or Sub Master in the local station is a
failure or perform the link test.

5-11

CORRECTIVE MAINTENANCE ROI-S05751

5.1.3 Loopback

When loopback condition is necessary, set the system to loopback
condition. (see Chart 5-1)

STM/SONET

ANALYZER

(Near End Loopback)

PC

STM/SONET

ANALYZER

When there is an interruption of signals, us
analyzers and isolate the faulty section by checking the traffic signal by
loopback. Setup the test equipment according to the following diagrams
for PDH or SONET configuration.

TRANSMITTING END

ODUIDU

C/N

(O/E)

CONV

N/C

(E/O)

CONV

OC-3 INTFC

RST

RST

MOD

(IF Loopback)

DEM

MODEM

TX

RX

Fig. 5-1 Loopback Diagram for Fault Isolation for SONET

RECEIVING END

DEMRX

MODTX

MODEM

e the STM/SONET/PDH

IDUODU

RST

(Far End Loopback)

RST

OC-3 INTFC

N/C

(E/O)

CONV

C/N

(O/E)

CONV

5-12

Note: The IF LOOPBACK and the RX SW is not operated interlock. In

1+1 configuration, The RX SW switching is needed to select the
same CH that is testing in IF LOOPBACK.
When the RX SW manual control is disable, set it to Forced mode
in Provisioning.

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-1 Loopback Control

Step Procedure

For the LCT operation, refer to Chapter 6 of LCT Operation in
Appendix of this Section IV.

This chart contains:
A. Preparation
B. IF Loopback Control
C. Main Loopback (Near End) Control (SONET)
D. Main Loopback (Far End) Control (SONET)

If loopback operation is performed, timing loop may occur (timing loop is
described in ITU-T Recommendation G.781).

Step Procedure

Caution: The Loopback control affects the radio link connection.

1. Loopback control operation is not performed at the
same time, or perform the Loopback reset control
and perform either Loopback mode.

• IF Loopback

• Near End Loopback

• Far End Loopback

2. Loopback operation is not performed with an
opposite station simultaneously.

3. Far End Loopback control will be canceled when
radio link failure occurs under the control has been
executed.

A. PREPARATION

1 Set up the BER measurement, (refer to Fig. 5-3)

2 Connect the LCT port and the USB port with a USB cable, (see

Fig. 2-2 in Chart 2-2)

3 Login LCT with User name “Admin” and Admin password,

5-13

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-1 (Cont’d)

Step Procedure

4 Click on the “Maintenance” button in “LCT MENU”,

LCT MENU

Alarm/Status
Equipment Setup
Inventory
AUX I/O

Maintenance

Provisioning
Metering
PMON(History)

Maintenance1
Maintenance2

5 Click on the “Maintenance1” menu,

6 Click on the control button “On” and click “S

et” button, to set to

Maintenance On mode,

7 For 1+1 configuration, switchover the TX SW and RX SW for

the channel is to be se

t loopback, (Refer to Chart 2.3 Manual

Switchover Operation)

8 Click on the “IF Loopback ( )” button in “Ma

intenance1” menu

and click on the setting button “On”,

Note: The control affects

Radio link connection.

---Maintenance1---

Item Value Setting
Maintenance On

IF Loopback (No.1) On

IF Loopback (No.2) Off Off On Set

Note:The control applies

Off On

Off On

to IF loopback in local MODEM.

Set

Set

9 Click on the “Set” button,

10 Click on the Alarm/Status on LCT MENU to check the status,

11 Refer to Fig. 5-7 to 5-9 Troubleshooting Flowchart to diagnose

th

e problem,

5-14

12 Click on the setting button “Off” of the IF Loopback ( ) and

click on the “Se

t” button,

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-1 (Cont’d)

Step Procedure

For OC-3 (E)

13 Click on the setting button “On” and click on the “Set” button,

---Maintenance1---

Item Value Setting
Maintenance On

Main Loopback (Near End) On Off On Set
Main Loopback (Far End) Off Off On Set

Off On

Set

5-15

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-1 (Cont’d)

Step Procedure

For OC-3 (O) (APS)

14 Click on the “Main Loopback (Near End)” button in

“Maintenance1” menu, click on the setting button “INTFC ( )” and
click on the “Set” button,

---Maintenance1---

Item Value Setting
Maintenance On

Main Loopback (Near End) INTFC (1) On Off On Set
Main Loopback (Near End) INTFC (2) Off Off On Set
Main Loopback (Far End) Off Off On Set

Off On

15 Click on the Alarm/Status on LCT MENU to check the status,

Set

16 Refer to Fig. 5-7 to 5-9 Troubleshooting Flowchart to diagnose

the problem,

17 Click on the setting button “Off” of the Main Loopback (Near

End) and click on the “Set” button,

18 Click on the setting button of Main Loopback (Far End) in

“Maintenance 1” menu and click on the “Set” button,

19 Click on the Alarm/Status on LCT MENU to check the status,

20 Refer to Fig. 5-7 to 5-9 Troubleshooting Flowchart to diagnose

the problem,

21 Click on the setting button “Off” of the Main Loopback (Far

End),

22 Reset control for TX RX SW to “Off”,

23 Reset Maintenance mode to “Off”.

5-16

ROI-S05751 CORRECTIVE MAINTENANCE

5.1.4 BER Measurement

Chart 5-2 BER Measurement

Apparatus:

Digital Multimeter with test leads

Screwdriver

SONET/SONET Analyzer (for SONET)

Optical Variable Attenuator (for OC-3

Optical Interface only)

Headset

Step Procedure

A. 4P LAN INTERFACE

Note: The BER measurement can not be performed

for the channel

which is set to Not Used or the channels shared with LAN.

TRANSMITTING END

4P LAN INTFC

IF IN/OUT

!

XIF OUT

G

!

XIF IN

IF IN/OUT

XIF IN

XIF OUT

XPIC CTRL

XPIC CTRL

RESET

RESET

TX
RX

XPIC

TX

RX

XPIC

G

PULL

PWR
ODU
MD/
CBL

PWR

SELV

G

PULL

PWR

ODU
MD/
CBL

PWR

SELV

NMS

LCT

NE

AUX/ALM

100M

PORT 1 PORT 2

100M

SC IN/OUT

100M

PORT 3 PORT4

PROTECT

EOW

CALL

ALM

100M

PASOLINK NEO

MAINT

MEMORY

IDU

MMC

ALM

G

5-17

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-2 (Cont’d)

Step Procedure

1 At both transmitting and receiving ends, set the BER test set as

follows:

Note: Operation of the TX SW and RX SW are not required in

1+0 system for the following.

2 In HS system, set the TX SW to No.1 or No.2 to “On” condition

at transmitting end (refer to Chart 2-3),

3 At receiving end, set the RX SW to either No.1 or No.2 to “On”

condition,

4 Measure BER at required CH and confirm that the values are

indicated as follows:

Requirement: 1 x 10

–12

or less

5 At receiving end, change setting of the RX SW to opposite No.1

or No.2 from it in step 5 and confirm that the measured value
satisfies requirement as in step 6,

6 Change setting of the TX SW to opposite No.1 or No.2 from it

in step 4 and confirm that the measured value satisfies
requirement given in step 6,

7 At receiving end, change setting of the RX SW to opposite No.1

or No.2 from it in step 7 and confirm that the measured value
satisfies requirement given in step 6,

8 Restore all connections and controls to normal.

5-18

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-2 (Cont’d)

Step Procedure

B. OPTICAL INTERFACE

Caution: To avoid damage to your e

yes, do not stare into laser
beam or view directly with optical instruments. (Class
1 Laser Product).

1 At the transmitting end, disconnect OPT cable from the STM1

IN connector on the OC-3 INTFC (see Fig. 5-2),

TRANSMITTING END

OC-3 INTFC

IF IN/OUT

!

XIF OUT

G

!

XIF IN

IF IN/OUT

XIF IN

XIF OUT

XPIC CTRL

XPIC CTRL

RESET

RESET

TX
RX

XPIC

TX
RX

XPIC

G

PULL

PWR
ODU
MD/
CBL

PWR

SELV

G

PULL

PWR
ODU
MD/
CBL

PWR

SELV

OC-3 (OPT) IN

OC-3 IN

OC-3 OUT

LCT

NMS

NE

ONLINE

AUX/ALM

IDU

RECEIVING END

OC-3 INTFC

IF IN/OUT

!

XIF OUT

G

!

XIF IN

IF IN/OUT

XIF IN

XIF OUT

XPIC CTRL

XPIC CTRL

RESET

RESET

TX

PWR

RX

ODU

XPIC

MD/
CBL

SELV

TX

PWR

RX

ODU

XPIC

MD/
CBL

SELV

OC-3 (OPT) OUT

G

PULL

PWR

G

PULL

PWR

OC-3 IN

OC-3 OUT

LCT

NMS

NE

ONLINE

AUX/ALM

IDU

OPTICAL

VARIABLE

ATTENUATOR *

ALM

SC IN/OUT

ALM

SC IN/OUT

(Blank)

PASOLINK NEO

PROTECT

EOW

CALL

MMC

STM/SONET

ANALYZER

(Blank)

PASO LINK NEO

PROTECT

EOW

CALL

MMC

STM/SONET

ANALYZER

MAINT

MEMORY

MAINT

MEMORY

IDU

IDU

G

G

Equipped with OC-3 Optical Interface

Fig. 5-2 BER Measurement for OC-3 Signal

2 At the receiving end, disconnect the OPT cable from the STM1

OUT connector on the OC-3 INTFC (see Fig. 5-2),

3 At both transmitting and receiving

ends, set the STM/SONET

Analyzer as follows:

5-19

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-2 (Cont’d)

Step Procedure

OC-3 INTFC(OPTICAL)

• Bit rate : 155.52 Mbps

• Code format : OC-3, NRZ

• Level S-1.1

IN : −8 to −28 dBm/ −10 to −34 dBm

OUT : −8 to −15 dBm/ 0 to −8 dBm

• Wave length
IN : 1310 nm
OUT : 1310 nm

L-1.1

Note: Operation of the TX SW and RX SW are not required in

1+0 system.

4 In HS system, set the TX SW to No.1 or No.2 to On condition at

transmitting end, (refer to

Chart 2-3)

5 At receiving end, set the RX SW to either No.1 or No.2 to On

condition,

6 Measure BER and confirm that the values are indicated as

follows:

Requirement: 1 x 10

7 At receiving end, change setting of t

–12

or less

he RX SW to opposite No.1
or No.2 from it in step 5 and confirm that the measured value
satisfies requirement given in step 6,

8 Change setting of the TX SW to opposi

te No.1 or No.2 from it
in step 4 and confirm that the measured value satisfies
requirement given in step 6,

9 At receiving end, change setting of t

he RX SW to opposite No.1
or No.2 from it in step 7 and confirm that the measured value
satisfies requirement given in step 6,

5-20

10 Restore all connections and controls to normal.

ROI-S05751 CORRECTIVE MAINTENANCE

5.1.5 Trouble Shooting Flow

When alarm condition occurs, red alarm LEDs on the IDU are lit except
when there is a power supply failure. Faults can be distinguished using the
LED indicators on the front panel of the IDU. Connect the LCT to the
equipment and check the equipment conditions in according with the flow
chart are shown in Fig. 5-3 to Fig. 5-5.

Is ODU ALM indicator (red) on the
IDU lighted?

YES

Is

IDU ALM indicator

(red) on the IDU

lighted?

YES

both IDU and ODU ALM

Check the IF cable connection and
connectors whether the cable is
open or short circuit.

Are

indicators (red)

flashing?

YES

Connect the LCT to the IDU and
check ALARM/STATUS menu.
Check every items whether

NO

indicated status is alarm or normal.

NO

TX Input

indicated normal?

YES

Is

NO

cable length and cable loss are

The

IF cable type,

used standard.

YES

Replace the ODU

with a spare.

NO

Change the IF

cable to standard.

NO

Replace the ODU

with a spare.

NO

NO

Reset CPU of the ODU.

ODU ALM is indicated

Is

normal?

YES

End

TX power of the ODU is

APC of the ODU is indicated

ODU CPU is indicated

Is

indicated normal?

YES

Is

normal?

YES

Is

normal?

YES

Check the RX

section of the ODU.

NO

Is TX power

vary with ATPC manual

control?

Replace the ODU with a
spare, if TX power alarm

continues when

temperature is improved.

Fig. 5-3 ODU TX Section Troubleshooting Flowchart

YES

YES

Is

LO REF indicated

normal?

NO

Is

XREF (MODEM)

indicated normal?

NO

Replace the ODU

with a spare.

NO

Replace the ODU

with a spare.

For XPIC

YES

Check the

IDU section.

5-21

CORRECTIVE MAINTENANCE ROI-S05751

Is ODU ALM indicator (red) on

the IDU lighted?

YES

IDU ALM indicator (red)

both IDU and ODU ALM

Check the IF cable connection and
connectors whether the cable is
open or short circuit.

Is

lighted?

YES

Are

indicators (red)

flashing?

YES

Reset CPU of the ODU

ODU ALM is indicated

Is

Normal?

YES

NO

NO

NO

NO

NO

Connect the LCT to the IDU and
check ALARM STATUS menu.
Check every items whether
indicated status is Alarm or Normal.

Is

RX Level

indicated Normal?

YES

APC of the ODU is indicated

ODU CPU is indicated

Is

Normal?

YES

Is

Normal?

YES

Is

ODU TX section are

checked?

NO

NO

Check the ODU

TX section.

For XPIC

NO

RSL monitor vary at random

Are

frequency value at

opposite site and local

site correct?

YES

Set proper frequency.

Is RXLEVEL by

interval?

YES

Check fading or

interference.

NO

5-22

End

YES

Check the TX

section of the ODU.

Replace the ODU

with a spare.

Check Antenna system or

Replace the ODU with a spare.

Fig. 5-4 ODU RX Section Troubleshooting Flowchart

ROI-S05751 CORRECTIVE MAINTENANCE

Is IDU ALM indicator (red) on
the IDU lighted?

ODU ALM indicator

both IDU and ODU ALM

Select IF Loopback from

Maintenance1 menu in the

Maintenance Menu on the LCT.

MOD/DEM indicated

Output LOS indicated

Connect the SONET Analizer for
BER measurement.

Select Far End loopback from
Control menu in the Maintenance
Menu on the LCT.

YES

Is

(red) on the IDU

lighted?

YES

Is

PWR LED on the

MODEM lit?

YES

Are

indicators (red)

flashing?

NO

Is

IDU indicated

Normal?

YES

Is

Normal?

YES

Is

Normal?

NO

NO

Replace Fuse

in the

MODEM.

A

NO

NO

Connect the LCT to the IDU

NO

YES

and check ALARM STATUS
menu. Check every items
whether indicated status is
Alarm or Normal.

Is

IF Cable indicated

Short?

Check the IF cable connection and

connectors whether the cable is

open or short circuit.

Is

MOD/DEM indicated

Normal?

YES

YES

Replace the MODEM

with a spare.

YES

Is

Input LOS indicated

Normal?

Check associated DTE

and cable connection.

YES

YES

NO

A

NO

Is

MOD indicated

Normal?

NO

NO

AIS Generated indicated

AIS or MS-AIS Received

status of LAN INTFC indicated

Is

Normal?

YES

Is

indicated

Normal?

YES

Is

CH Usage indicated

Normal?

YES

Is

Normal?

YES

A

Is

XREF indicated

normal?

NO

Replace the MODEM

with a spare.

Check associated

DTE at opposite site.

Check associated

DTE at local site.

Set CH usage correct.

Perform LAN device

reset and check LAN

cable or associated
external equipment.

XIF indicated

normal?

NO

NO

NO

NO

For XPIC

YES

Is

YES

NO

Display ALARM/STATUS items
from main menu on the LCT
again.

Output LOS indicated

Check associated DTE and

Is

Normal?

YES

cable connection at

opposite site.

Fig. 5-5 IDU Section T

NO

( ) INTFC faulty.

Replace the ( ) INTFC

roubleshooting Flowchart

Check the XIFcable, IDU and ODU
of the opposite pol. CH or setting of

the opposite station.

5-23

CORRECTIVE MAINTENANCE ROI-S05751

5.2 Replacement

The replacement procedures of the IDU and ODU is described below.

5.2.1 ODU Replacement

The procedures for replacing the ODU with a spare are given in the Chart
5-3. The label attached to the side of ODU indicates the ODU type (see Fig
5-6). To replace the ODU, prepare another ODU of the same type as
indicated on the label of the failed one.

Check the name plate of the spare ODU
coincided, the ODU can be replaced.

Caution: Do not remove/connect the IF cable with the IDU power

ON. T

urn the IDU power OFF before connecting/

disconnecting the IF cable, or equipment may be damaged.

Caution: To avoid microfonic properties, occurrence of bit errors,

when inst

alling the ODU on the HYB or OMT, protect the

ODU from mechanical knocks which is not be replaced.

NLite E

RX LEV

IFL

MON

6-38 GHz ODU

FG

. When the indicated items are

NLITE E

TRP-( )G-1B
OUTDOOR UNIT (NHG)

SHIFT FREQUENCY

SERIAL No.

WEIGHT 3.5kg/ - 48V

NEC Corporation TOKYO JAPAN

CAUTION

Non-ionizing
radiation

NLITE E

TRP-( )G-1B
OUTDOOR UNIT (NHG)

SHIFT FREQUENCY

TX FREQUENCY

SERIAL No.

WEIGHT 3.5kg/ - 48V

NEC Corporation TOKYO JAPAN

CAUTION

Non-ionizing
radiation

0678

MHz SUB BAND

DATE

0.5A

-48V INPUT

Power down IDU before
disconnection or
connection of cable.

0678

MHz SUB BAND

MHz

DATE

0.5A

-48V INPUT

Power down IDU before

disconnection or

connection of cable.

(NWA-009034)

TX
HIGH/LOW

MADE IN JAPAN

(NWA-009034)

TX
HIGH/LOW

MADE IN JAPAN

5-24

Fig. 5-6 ODU Type and Frequency Indication Label

Note: Before replacing the ODU in XPIC, perform the control of XPIC

Local and XPIC Remote Reset by the LCT for Main Master or
Sub Master channel that is to be used online.

The mounting and demounting the ODU from/to antenna, refer to the
Installation and Initial

Line up in Section III.

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-3 ODU Replacement

Apparatus:

T type hexagonal driver

Step Procedure

REMOVING

1 For 1+1 configuration, switchover the TX SW and RX SW for

the

standby channel is to be replaced,

2 Turn off the power switch on the MODEM which is connected

to the ODU is to be replace

d,

3 Remove the self-bonding tape from the IF IN/OUT connector

4 Disconnect the IF cable from the IF

IN/OUT connector on the

,

ODU,

5 Disconnect ground cable from the FG terminal on the ODU,

6 Loosen four bolts fixed the ODU with a T type hexagonal

driv

er,

SCREWS

NLite E

GROUND

RX LEV

MON

IFL

FG

SCREWS

CABLE

IF
CABLE

ODU

7 Remove the ODU from the bracket,

5-25

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-3 (Cont’d)

Step Procedure

MOUNTING

8 When the ODU is used for vertical polarization, rotate the ODU

so

that the plate marked V is on top,

Note: Remove the protection metallic plate covering the waveguide

hole on ODU.

UP

9 When the ODU is used for horizontal polariz

ation, remove the

guide pin fixed on the plate marked V,

PLATE MARKED V

NLite E

RX LEV

IFL

MON

FG

Guide Pin

ODU

V POLARIZATION

10 Insert the guide pin removed in step 8 behind of the plate

ma

rked H,

11 Rotate the ODU so that the

PLATE MARKED H

Guide Pin

plate marked H is on top,

5-26

UP

RX LEV

MON

IFL

FG

NLite E

ODU

H POLARIZATION

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-3 (Cont’d)

Step Procedure

12 Fit the spare ODU onto the bracket,

Note: Be careful not to damage the flange and O-ring.

13 Mount the spare ODU onto the bracket and tighten the four

screws on the ODU,

14 Reconnect the IF cable to the IF IN/OUT connector on the

ODU,

15 Wrap twice the IF IN/OUT connector with self-bonding tape for

waterproofing. (see Fig. 5-7 (1/2) and (2/2))

16 Reconnect ground cable removed in step 4 to FG terminal,

17 Turn on the power switch on the IDU.

5-27

CORRECTIVE MAINTENANCE ROI-S05751

ANT

POLE

(*)

ANT

POLE

HYB

ODU

ODU

(*)

ODU

6-8 GHz BAND

Note: * These parts should be wrapped by self-bonding

tape for waterproof.

6-8 GHz BAND

Wrap twice the IF IN/OUT connector with
self-bonding tape for waterproofing.

self-bonding

tape

stretch

ODU

twice

a half of tape width

5-28

Fig. 5-7 Location of Connector for Waterproof (1/2)

ROI-S05751 CORRECTIVE MAINTENANCE

Wrap twice the IF IN/OUT connector with
self-bonding tape for waterproofing.

self-bonding

tape

stretch

ODU

a half of tape width

ODU

twice

CONNECTOR

This part should be wrapped by
self-bonding tape for waterproof.

ODU

SELF-BONDING TAPE

Note: The self-bonding tape should be prepared by customer.

Fig. 5-7 Location of Connector for Waterproof (2/2)

IF CABLE

SELF-BONDING TAPE

ODU

IN CASE OF L−ANGLE

IF CABLE

5-29

CORRECTIVE MAINTENANCE ROI-S05751

5.2.2 IDU and Module Replacement

The procedures for replacing IDU/module with a spare are given in the
Chart 5-4.

Chart 5-4 IDU and Module Replacement

Caution: Persons performing maintenance must take necessary steps

to avoid electro-static discharge which may damage the
modules or cause error. Wear a conductive wrist strap
connected to the grounded (G) jack on the front of the
equipment shelf. This will minimize static build-up during
maintenance. (see Fig. 2-1 in Chapter 2).

Caution: Do not remove/connect the IF cable with the IDU power

ON. Turn the IDU power OFF before connecting/
disconnecting the IF cable, or equipment may be damaged.

This chart contains:

A. Module replacement
B. IDU replacement

Apparatus:

Suitable Screwdriver

Step Procedure

A. MODULE REPLACEMENT

Note: Be careful do not touch the electric parts and printed

circuit on the module.

Note: The top surface of the IDU above MODEM is hot in

operation.

Note: The maintenance personnel should report starting

replacement from a station to the relevant station.

1 Referring to Chart 2-1, set the IDU to maintenance ON

condition by LCT,

5-30

2 For 1+1 configuration, switchover the TX SW and RX SW for

the standby channel from the working channel which is to be
replaced,

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-4 (Cont’d)

Step Procedure

Removing MODEM

3 When the MODEM will be replaced, turn off the power switch

on the corresponding MODEM which is to be replaced,

4 Disconnect cables as following order,

(1) Disconnect power supply cable from SELV connector.

(2) Disconnect IF cable from IF IN/OUT connector. The

adapter is reused.

(3) Disconnect ground cable from the ground terminal.

5 Loosen two screws on the MODEM module, (See Fig. 5-8)

6 Remove the MODEM module from the IDU shelf,

Mounting MODEM

1 When the MODEM is replaced, check that the power switch is

set to Off position,

2 Align the MODEM to the shelf, then push it in until the multipin

connector firmly fits,

3 Tighten the two screws on the module,

4 Connect cables as following order,

(1) Connect ground cable to the ground terminal.

(2) Connect IF cable with adapter to IF IN/OUT connector.

(3) Connect power supply cable to SELV connector.

5 Turn on the power switch on the MODEM,

6 Check that the MODEM is normal on the Alarm/Status display,

7 Check that the installed MODEM module exists in the

INVENTRY list,

8 Check the operation of the replaced MODEM module,

9 Referring to Chart 2-1, set the IDU to maintenance OFF

condition by LCT.

5-31

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-4 (Cont’d)

Step Procedure

Replacement of the OC-3 (Optical) INTFC in APS

Caution: Do not stare at the laser beam or look at it directly with

optical instruments. Otherwise, it may hurt your eyes (Class
1 Laser Product)

For the OC-3 (OPTICAL) INTFC replacement in APS configuration, the
OC-3 (OPTICAL) INTFC can be replaced without power OFF and not
affect traffic when doing replacement as following order. (When the traffic
is not applied to the system, turn off the power switch before performing
the replacement of the module.). The maintenance personnel should report
starting replacement from a station to the relevant station.

1 Referring to Chart 2-1, set the IDU to maintenance ON

condition by LCT,

2 Click on “APS Manual Control” from “Maintenance 1” menu,

3 Switchover the module is to be replaced to OFF LINE. Click on

the “Working” or “Protection” button and click on the “Set”
button, then, value turns to selected side for ON LINE,

---Maintenance1---

Item Value Setting
Maintenance On

APS Manual Control Working Auto Working Protection Set

Off On

Set

4 Check that the “ON LINE” LED is unlit on the OC-3

(OPTICAL) INTFC which is to be replaced,

5 Set the PROTECT SW on the module front to ON (for upper

position), then the MAINT LED starts the blink,
The module can be replaced under the MAINT LED is blinking,

(a) There is need to install the MMC. The MEMORY LED blinks

during the data is uploading to the MMC, the MAINT LED
starts the blink after upload of the data has been completed.

(b) When the CTRL becomes the PROTECT mode, LCT

connection takes timeout.

5-32

6 Disconnect optical cables from OC-3 OUT and OC-3 IN

connectors on the OC-3 (OPTICAL) INTFC module is to be
replaced,

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-4 (Cont’d)

Step Procedure

7 Loosen two screws on the OC-3 (OPTICAL) INTFC module is

to be replaced, (See Fig. 5-11)

8 Extract the OC-3 (OPTICAL) INTFC module from the IDU

shelf,

Note: Be careful not catch the module on the cable when

extracting the module. If the module caught on the live
cables, it may be caused radio link error.

9 Install the spare OC-3 (OPTICAL) INTFC module into the IDU

shelf,

10 Connect the OPT cables to the OC-3 OUT and OC-3 IN

connectors on the OC-3 (OPTICAL) INTFC module,

11 Set the PROTECT SW on the module front to OFF (for lower

position), then the MAINT LED turns to lit,

When the PROTECT SW turns to OFF, it will appear
momentary that events have been latched.

12 Check that the OC-3(1) and OC-3(2) are normal on the Alarm/

Status display,

13 Check that the installed OC-3 (OPTICAL) INTFC module

exists in the INVENTRY list,

14 Check the operation of the replaced OC-3 (OPTICAL) INTFC

module,

15 Click on the “Auto” button and click on the “Set” button, then,

value turns to Auto,

16 Click on the “Off” button of Maintenance and Click on the “Set”

button,

17 This work finishes.

5-33

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-4 (Cont’d)

Step Procedure

System Upgrade for APS of OC-3 (OPTICAL) INTFC

Caution: To avoid eye damage, do not stare at the laser beam or look

at it directly with optical instruments. (Class 1 Laser
Product)

For the change of OC-3 (OPTICAL) INTFC system to the APS system,
perform system setup without power OFF and not affect traffic when
doing replacement as following order. The maintenance personnel should
report starting replacement from a station to the relevant station.

1 Referring to Chart 2-1, set the IDU to maintenance ON

condition by LCT,

2 Click on the “Equipment Setup” button in “LCT MENU”, then

“Equipment Setup” menu is displayed,

3 Select “OC-3 OPT for APS” from pull-down menu of the

SUB(PROT),

4 Click on the “Available” setting button of the APS Function,

5 Click on the “SET” button in Common area, then “OK” is

displayed in Progress area when the setup is properly executed,

---Equipment Setup---

User Interface SONET OC-3

Redundancy Setting 1+1(Hot Standby TERM)

INTFC (Main) OC-3(OPTICAL)

INTFC (Prot) OC-3 OPT for APS

XPIC Usage Not Used Used(Main Master) Used(Sub Master)
APS Function

Modulation Scheme 128QAM

Transmission Capacity 156MB

Unavailable Available

5-34

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-4 (Cont’d)

Step Procedure

6 Click on the Provisioning button on “LCT MENU”,

7 Click on the “Forced” control button of the APS Maintenance

Mode item,

----Condition for APS---

APS Maintenance Mode Manual Forced

8 Click on the “SET” button in Common area, then “OK” is

displayed in Progress area when the setup is properly executed,

9 In the Maintenance1 menu, Click on the “Working” button of

the APS Manual Control and Click on the “Set” button, then,
value turns to “Working”,

---Maintenance1---

Item Value Setting
Maintenance On

APS Manual Control Working Auto Working Protection Set

Off On

Set

10 Remove the blank cover of the Slot2 for OC-3 INTFC(2),

11 Install the OC-3 (OPTICAL) INTFC module into the Slot2,

12 Tighten two screws of the OC-3 (OPTICAL) INTFC module,

(See Fig. 5-11)

13 Connect the OPT cables to the OC-3 OUT and OC-3 IN

connectors on the OC-3 (OPTICAL) INTFC module,

14 Check that the OC-3(1) and OC-3(2) are normal on the Alarm/

Status display,

15 Check that the installed OC-3 (OPTICAL) INTFC module

exists in the INVENTRY list,

16 Check the operation of the installed OC-3 (OPTICAL) INTFC

module,

17 Click on the “Auto” button and Click on the “Set” button, then,

value turns to Auto,

18 Click on the “Off” button of Maintenance and Click on the “Set”

button,

19 This work finishes.

5-35

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-4 (Cont’d)

Step Procedure

System Change from e/w APS to w/o APS of OC-3 (OPTICAL)
INTFC

Caution: Do not stare at the laser beam or look at it directly with

optical instruments. Otherwise, it may hurt your eyes (Class
1 Laser Product).

For the change of OC-3 (OPTICAL) INTFC system of the APS system to
without APS system, perform system setup without power OFF and not
affect traffic when doing system change as following order. The
maintenance personnel should report starting system change from a station
to the relevant station.

1 Referring to Chart 2-1, set the IDU to maintenance ON

condition by LCT,

2 In the Maintenance1 menu, Click on the “Working” button of

the APS Manual Control and Click on the “Set” button, when
the Protection side is ON LINE, value turns to “Working”,

---Maintenance1---

Item Value Setting
Maintenance On

APS Manual Control Working Auto Working Protection Set

Off On

Set

3 Click on the “Auto” button of the APS Manual Control and

Click on the “Set” button,

When the Working side is ON LINE, check that the APS
Manual Control is “Auto” mode,

---Maintenance1---

Item Value Setting
Maintenance On

APS Manual Control Auto Auto Working Protection Set

Off On

Set

4 Click on the “Equipment Setup” button in “LCT MENU”, then

“Equipment Setup” menu is displayed,

5-36

5 Select “Not Used” from pull-down menu of the SUB(PROT),

6 Click on the “Unavailable” setting button of the APS Function,

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-4 (Cont’d)

Step Procedure

7 Click on the “SET” button in Common area, then “OK” is

displayed in Progress area when the setup is properly executed,

8 Perform step 8 to step 11 when it is needed,

---Equipment Setup---

User Interface SONET OC-3

Redundancy Setting 1+1(Hot Standby TERM)

INTFC (Main) OC-3(OPTICAL)

INTFC (Prot) Not Used

XPIC Usage Not Used Used(Main Master) Used(Sub Master)
APS Function

Modulation Scheme 128QAM

Transmission Capacity 156MB

Unavailable Available

9 Disconnect optical cables from OC-3 OUT and OC-3 IN

connectors on the OC-3 (OPTICAL) INTFC module in the
Slot2,

10 Loosen two screws on the OC-3 (OPTICAL) INTFC module is

to be replaced, (See Fig. 5-11)

11 Extract the OC-3 (OPT) INTFC module from the Slot2,

Note: Be careful not catch the module on the cable when

extracting the module. If the module caught on the live
cables, it may be caused radio link error.

12 Fit the blank cover with two screws to the Slot2,

13 Click on the “Off” button of Maintenance and click on the “Set”

button,

5-37

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-4 (Cont’d)

Step Procedure

Removing OC-3 INTFC, GbE INTFC, CTRL

1 Referring to Chart 2-1, set the IDU to maintenance ON

condition by LCT,

Note: When the CTRL is a failure, replace it with a spare as

explained below.

Note: When the CTRL is replaced without power OFF, refer to the

“Replacing the CTRL Used MMC or LCT”.

---Maintenance1---

Item Value Setting
Maintenance On

Off On

Set

2 Turn off the power switch on the MODEM (both MODEM for

1+1 configuration),

3 Disconnect all the cables connected to the module,

4 Loosen two screws on the module, (See Fig. 5-11),

5 Extract the module,

Note: Be careful to avoid catching the module on the cable

when extracting the module. If the module is caught on
the live cables, it may cause a radio link error.

5-38

ROI-S05751 CORRECTIVE MAINTENANCE

1+0 SYSTEM

IDU

G

1+1 SYSTEM

IDU

FG

MODEM No. 2

W/O APS SYSTEM

IDU

G

IF IN/OUT

!

XIF OUT

XIF IN

IF IN/OUT

!

XIF OUT

XIF IN

MODEM No. 1

IF IN/OUT

!

XIF OUT

XIF IN

IF IN/OUT

!

XIF OUT

XIF IN

SCREW

IF IN/OUT

!

XIF OUT

XIF IN

IF IN/OUT

!

XIF OUT

XIF IN

SCREW

MODEM

XPIC CTRL

XPIC CTRL

XPIC CTRL

XPIC CTRL

XPIC CTRL

XPIC CTRL

RESET

XPIC

RESET

RESET

RESET

RESET

XPIC

XPIC

XPIC

RESET

XPIC

SCREW

OC-3 IN

NMS

Gb E INTFC

NE

AUX/ALM

SCREW

(Blank Cover)

SC IN/OUT

nlite e

PROTECT

EOW

CALL

MAINT

MEMORY

IDU

MMC

G

G

TX
RX

TX

RX

PULL

PWR
ODU
MD/
CBL

PWR

SELV

G

PULL

PWR

ODU
MD/
CBL

PWR

SELV

OC-3 OUT

LCT

CTRL

SCREW

Gb E INTFC

TX
RX

TX
RX

PULL

PWR
ODU
MD/
CBL

PWR

SELV

PULL

PWR
ODU
MD/
CBL

PWR

SELV

OC-3 OUT

LCT NMS

OC-3 IN

AUX/ALM

NE

(Blank Cover)

SC IN/OUT

nlite e

PROTECT

EOW

CALL

MAINT

MEMORY

IDU

MMC

FG

CTRL

SCREW

OC-3 (OPTICAL) INTFC

G

TX

RX

XPIC

TX
RX

PULL

PWR
ODU
MD/
CBL

PWR

SELV

G

PULL

PWR
ODU
MD/
CBL

PWR

SELV

LCT

OC-3 IN

OC-3 OUT

NMS

NE

ONLINE

AUX/ALM

ALM

(Blank Cover)

SC IN/OUT

Slot2

nlite e

PROTECT

EOW

CALL

MAINT

MEMORY

IDU

MMC

G

E/W APS SYSTEM

IF IN/OUT

!

G

!

XIF IN

IF IN/OUT

XIF IN

OC-3 (OPTICAL) INTFC

G

PULL

PWR
ODU
MD/
CBL

PWR

SELV

G

PULL

PWR
ODU
MD/
CBL

PWR

SELV

LCT

OC-3 IN

OC-3 OUT

NMS

NE

AUX/ALM

XIF OUT

XIF OUT

XPIC CTRL

XPIC CTRL

RESET

RESET

TX

RX

XPIC

TX

RX

XPIC

Fig. 5-8 Demounting and Remounting Module

SCREW

OC-3 (OPTICAL) INTFC

ALM

ONLINE ONLINE

SC IN/OUT

OC-3 OUT

EOW

PROTECT

CALL

OC-3 IN

nlite e

MMC

MAINT

MEMORY

ALM

G

IDU

5-39

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-4 (Cont’d)

Step Procedure

Mounting OC-3 (OPTICAL) INTFC w/o APS

For the OC-3 (OPTICAL) INTFC mounting without APS, install the
module as following order,

1 Referring to Chart 2-1, set the IDU to maintenance ON

condition by LCT,

---Maintenance1---

Item Value Setting
Maintenance On

2 Turn OFF the power switch on the MODEM,

Off On

Set

3 Align the OC-3 (OPTICAL) INTFC to the shelf, then push it in

until the multipin connector firmly fits,

4 Tighten the two screws on the module,

5 Connect optical cables to OC-3 OUT and OC-3 IN connectors,

Caution: Do not stare at the laser beam or look at it directly with

optical instruments. Otherwise, it may hurt your eyes (Class
1 Laser Product).

6 Turn ON the power switch on the MODEM,

7 Check that the “ON LINE” LED is lit on the OC-3 (OPTICAL)

INTFC which is replaced,

8 Check that the OC-3(1) is normal on the Alarm/Status display,

9 Check that the installed OC-3 (OPTICAL) INTFC module

exists in the INVENTRY list,

10 Check the operation of the installed OC-3 (OPTICAL) INTFC

module,

11 Click on the “Off” button of Maintenance and Click on the “Set”

button,

---Maintenance1---

Item Value Setting
Maintenance Off

Off On

Set

5-40

12 This work finishes.

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-4 (Cont’d)

Step Procedure

Mounting GbE (OPTICAL) INTFC

For the GbE (OPTICAL) INTFC mounting, install the module as
following order,

1 Referring to Chart 2-1, set the IDU to maintenance ON

condition by LCT,

---Maintenance1---

Item Value Setting
Maintenance On

Off On

Set

2 Turn OFF the power switch on the MODEM,

3 Align the GbE (OPTICAL) INTFC to the shelf, then push it in

until the multipin connector firmly fits,

4 Tighten the two screws on the module,

5 Connect optical cables to 1000BASE-SX OUT and IN

connectors,

Caution: Do not stare at the laser beam or look at it directly with

optical instruments. Otherwise, it may hurt your eyes (Class
1 Laser Product).

6 Turn ON the power switch on the MODEM,

7 Check that the “ON LINE” LED is lit on the GbE (OPTICAL)

INTFC which is replaced,

8 Check that the OC-3(1) is normal on the Alarm/Status display,

9 Check that the installed GbE (OPTICAL) INTFC module exists

in the INVENTRY list,

10 Check the operation of the installed GbE (OPTICAL) INTFC

module,

11 Click on the “Off” button of Maintenance and Click on the “Set”

button,

---Maintenance1---

Item Value Setting
Maintenance Off

Off On

Set

5-41

CORRECTIVE MAINTENANCE ROI-S05751

Step Procedure

OC-3/GbE INTFC, CTRL

1 Referring to Chart 2-1, set the IDU to maintenance ON

condition by LCT,

---Maintenance1---

Item Value Setting
Maintenance On

2 Turn OFF the power switch on the MODEM,

3 Check that the switch on the MODEM (both MODEM for 1+1

configuration) is off position,

4 Align the module to the IDU shelf, then push it in until the

multipin connector firmly fits,

Off On

Set

5 Tighten two screws on the module,

6 Connect all cables to the module,

7 Turn on the power switch on the MODEM.

8 Check that the 4P LAN INTFC, OC-3, GbE INTFC, CTRL is

normal on the Alarm/Status display,

9 Check that the installed 4P LAN INTFC, OC-3, GbE INTFC,

CTRL module exists in the INVENTRY list,

10 Check the operation of the replaced 4P LAN INTFC, OC-3,

GbE INTFC, CTRL module,

11 Click on the “Off” button of Maintenance and click on the “Set”

button,

---Maintenance1---

Item Value Setting
Maintenance Off

Off On

Set

5-42

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-4 (Cont’d)

Step Procedure

Replacing the CTRL Using the MMC or LCT.

This procedure explains how to replace the CTRL using the MMC or LCT.
This procedure is applied when the CTRL is not failed, or when the
equipment configuration data are saved into the MMC or LCT/PNMx.

Note: If the NMS parameters (Network Config.) can not be restored,

then the resetup with the PNMx is required.

The Use of the MMC for the CTRL Replacement

When the MMC is used, the replacement can be performed without the
LCT operation.(The resetup with the PNMx for the Network Config. is
necessary.)

1 Insert the MMC into the MMC slot on the CTRL front, (The

data size to save is approximately 10 kbyte.)

2 Set the PROTECT SW on the CTRL front to ON position (for

upper side). Then, the MAINT LED (amber) on the IDU is lit
and the equipment configuration data gather up and the saving
of data to the MMC start,

3 When the equipment configuration data gather up and data

saving to the MMC has been completed, the MAINT LED on
the IDU blinks slowly, (Check that the MAINT LED blinks
slowly when remove the CTRL.)

4 Remove the cables connected to the CTRL, loosen two fixed

screws and remove the CTRL,

Note: Be careful not catch the module on the cable when

extracting the module. If the module caught on the live
cables, it may be caused radio link error.

5 Prepare the spare CTRL. Set the PROTECT SW on the spare

CTRL to ON position (for upper side), (The PROTECT SW
setting distinguish the normal start up or protected start up.)
Mount the CTRL into the IDU. Check that the MAINT LED on
the IDU blinks. Tighten two screws and connect cables removed
in step 4.

5-43

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-4 (Cont’d)

Step Procedure

6 When the MAINT LED blinks, insert the MMC into the MMC

slot on the CTRL front, which has equipment configuration data
used in the former CTRL,

7 The download of the equipment configuration data start, the

de

ployment is performed. When the CTRL has been made
provision, MAINT LED on the IDU turns to light. Check that
the MAINT LED lights and set the PROTECT SW to OFF
position (for lower side). Then, the equipment configuration
data deploys and data is restored.

8 In the Equipment Setup menu and the Provisioning menu,

confirm that the equipment configurati
are the same as before replacement. Check that neither alarm is
indicated in the Alarm Status.

on and setting conditions

SCREW

LCT NMS

NE

9 The CTRL replacement finishes. Perform the resetup for the

Network

AUX/ALM

Config. since the Network Config. data is not restored.

CTRL

SC IN/OUT

MPROTECT SW

MMC Slot

PROTECT

EOW

MMC

CALL

MAINTE LED

PAS OLI N K NE O

MAINT

MEMORY

MMC

IDU

SCREW

5-44

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-4 (Cont’d)

Step Procedure

Note: If the NMS parameters (Network Config.) can not be restored,

then the resetup with the PNMx is required.

The Use of the LCT for the CTRL Replacement

When the LCT is used, the replacement can be performed without the
MMC. (The resetup with the PNMx for the Network Config. is necessary.)

1 Referring to Chart 2-1, set the IDU to Maintenance ON

condition

by LCT (Check that the MAINT LED lights.),

--- Maintenance2 ---

---Control---

CPU Reset

---Download---

Configuration File

Program File

Equipment Config. File

---Upload---

Configuration File

Equipment Config. File

---Date/Time---

Date/Time Setting

---Password---

Password Setting

2 Set the PROTECT SW on the CTRL

upper side). Then, equipment configuration data gather up and
the saving of data start,

---PMON Clear---

front to ON position (for

PMON Clear

3 Select the Maintenance2 from the Maintenance menu, select the

Equipment Config. File of Upload. Enter the directory of the
file name where the uploaded file will be saved (extension is
.cfg),

4 When the upload to the LCT has completed, MAINT LED

blinks slowly (Check that the MAINT LED blinks slowly

when

remove the CTRL.),

5-45

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-4 (Cont’d)

Step Procedure

5 Remove the cables connected to the CTRL, loosen two fixed

screws and remove the CTRL,

Note: Be careful to avoid catching the module on the cable when

extracting the module. If the module is caught on the live
cables, it may cause a radio link error.

6 Prepare the spare CTRL. Set the PROTECT SW on the spare

CTRL to ON position (for upper side), (The PROTECT SW
setting distinguish the normal start up or protected start up.)
Mount the CTRL into the IDU. Check that the MAINT LED on
the IDU blinks. Tighten two screws and connect cables
removed,

7 To download the equipment configuration data to the LCT,

select Maintenance2 from the Maintenance menu, select the
Equipment Config. File of Download. Enter the directory of the
file name where the uploaded file is saved, click on the

Execute” button to start the download. When “Complete”

“
appears in the Progress Status, click on the “Update” button to
perform download.

8 When the CTRL has been provisioned, the MAINT LED on the

IDU turns to light. Check that the MAINT LED lights, set the
PROTECT SW to OFF position (for lower side). Then, the
equipment configuration data deploys and data is restored.

9 In the Equipment Setup menu and the Provisioning menu,

confirm that the equipment configuration and setting conditions
are the same as before replacement. Check that neither alarm is
indicated in the Alarm Status.

10 The CTRL replacement finishes. Perform the resetup for the

Network Config. since the Network Config. data is not restored.

5-46

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-4 (Cont’d)

Step Procedure

Replacing the DC-DC CONV (Optional).

When the power is supplied to the SELV of the DC-DC CONV (optional)
but the PWR LED of the DC-DC CONV is not lit though the power switch
is on, before replacing the DC-DC CONV, check the conduction of the
fuse in the DC-DC CONV.

1 Referring to Chart 2-1, set the IDU to maintenance ON

condition by LCT

,

2 Set the power switch on the MODEM to Off position,

3 Set the power switch on the DC-DC CONV to Off position,

FG

Screw

!

−

43V

G

STD

OUT

G

−43V/OUT

IF IN/OUT

XIF IN

ALM

XIF OUT

ALM

TX

RX

XPIC

RESET

XPIC CTRL

FUSE (250V/8AH)

PWR LED

PWR LED

PWR

ODU
MD/
CBL

SELV

PWR

SELV

PULL

PWR

G

PULL

PWR Switch

LCT

PWR

OC-3 OUT

NMS

AUX/ALM

ONLINE

ALM

SC IN/OUT

OC-3 OUT

OC-3 IN

PROTECT

EOW

CALL

OC-3 IN

NE

NLITE E

MMC

ONLINE

MAINT

MEMORY

ALM

FG

IDU

Screw

PWR Switch

SELV

4 Disconnect cables connected to the DC-DC CONV as following

order,

(1) Disconnect power supply ca

(2) Disconnect power supply cable from

ble from SELV connector,

−43/OUT connector,

(3) Disconnect ground cable from ground terminal,

(4) Disconnect ALM cable from

ALM terminal,

5 Loosen two screws fixed the DC-DC CONV,

6 Extract the DC-DC CONV from the IDU shelf,

7 Check that the power switch on the spare DC-DC CONV is Off

position

8 Mount the spare DC-DC CONV to the IDU shelf,

9 Tighten two screws to fix the DC-DC CONV,

10 Connect cables to the DC-DC CONV as reversed order in step

4,

5-47

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-4 (Cont’d)

Step Procedure

11 Turn on the power switch on the DC-DC CONV,

12 Check that PWR LED on the DC-DC CONV is on,

13 Turn on the power switch on the MODEM,

14 Check that PWR LED on the MODEM is on,

15 Check that ALM LED on the IDU is unlited,

16 Set the IDU to maintenance OFF condition by LCT.

5-48

ROI-S05751 CORRECTIVE MAINTENANCE

Chart 5-4 (Cont’d)

Step Procedure

B. IDU REPLACEMENT

REMOVING

1 Turn off the power switch on the MODEM (both MODEM in

1+1 configuration),

2 Disconnect the IF cable, signal cables and the power cable, etc.

as following order,

(1) Disconnect XPIC CTRL cables from opposite IDU. (XPIC

configuration only.)

(2) Disconnect XIF coaxial cables from opposite IDU. (XPIC

configuration only.)

(3) Disconnect OC-3, LAN, Aux. signal cables from connector.

(4) Disconnect power supply cable from SELV connector.

(5) Disconnect IF cable from IF IN/OUT connector.

(6) Disconnect ground cable from the ground terminal

Note: The adapter for IF cable connector is reused.

3 As shown in Fig. 5-9, loosen four screws and remove the IDU,

MOUNTING

4 Fix the two brackets to desired position on the IDU, if necessary

(see Fig. 5-10),

5 Mount the IDU into the original position of the mounting rack

and tighten the four screws,

6 Reconnect the IF cables, signal cables and the power cable to

the original position as following order,

(1) Connect ground cable to the ground terminal

(2) Connect IF cable (with adapter) to IF IN/OUT connector.

(3) Connect power supply cable to SELV connector.

(4) Connect OC-3, LAN, Aux. signal cables to proper

connector.

(5) Connect XIF coaxial cables to opposite IDU. (XPIC

configuration only.)

(6) Connect XPIC CTRL cables to opposite IDU. (XPIC

configuration only.)

5-49

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-4 (Cont’d)

Step Procedure

7 Form the wiring, and fix the cables using cable binder to the

mounting rack,

SCREW

Notes: 1. Do not cross the cables o

n front of indicators and power

switch used for maintenance.

2. Take suitable radius to wiring the IF cable. (e.g. 10D­FB: 70 cm)

8 Turn on the power switch on the IDU.

Hot Surface

Note: Weight 4 kg.

Caution: The top surface of the IDU above

MODEM is hot in operation.

Fig. 5-9 Demounting and Remounting

FRONT
POSITION

Fig. 5-10 Bracket Mounting Position

5-50

CENTER

POSITION

SIDE VIEW

ROI-S05751 CORRECTIVE MAINTENANCE

5.2.3 Fuse Replacement

When the power is supplied to the SELV but the IDU can not be powered
on with the power switch, check the conduction of fuse in the MODEM.

Chart 5-5 Fuse Replacement

Step Procedure

1 Set the power switch on the MODEM which is not powered to

Off position,

2 Disconnect cables connected to the MODEM as following

order,

(1) Disconnect power supply cable from SELV connector.

(2) Disconnect IF cable from IF IN/OUT connector. The adapter

is reused.

(3) Disconnect ground cable from the ground terminal.

3 Loosen two screws on the MODEM,

4 Extract the MODEM from the IDU shelf,

5 Remove protection cap over the fuse (see Fig. 5-11),

6 Remove the fuse from the fuse holder,

7 Check conduction of the broken fuse using tester,

8 Check conduction of the reserved fuse using tester,

9 Replace the broken fuse with reserved one,

10 Set the replaced fuse to the fuse holder,

11 Cap over the replaced fuse,

12 Mount the MODEM to the IDU shelf,

13 Tighten two screws on the MODEM,

14 Connect cables to the MODEM as reversed order in step 2,

15 Turn on the power switch on the MODEM,

16 Check that power is on.

5-51

CORRECTIVE MAINTENANCE ROI-S05751

(MODEM)

(Front)

RESERVE

Reserve Fuse (6.3A)

21606.3 Fuse
RKS-F91000-0107

Fuse Cap

Fig. 5-11 Fuse in the MODEM

5-52

ROI-S05751 CORRECTIVE MAINTENANCE

When the power is supplied to the SELV of the DC-DC CONV (optional)
but the PWR LED of the DC-DC CONV is not lit though the power switch
is on, check the conduction of the fuse in the DC-DC CONV.

Chart 5-6 DC-DC CONV Fuse Replacement

Step Procedure

1 Set the power switch on the DC-DC CONV which is not

powered to Off position

2 Disconnect cables connected to the DC-DC CONV as following

order,

(1) Disconnect power supply cable from SELV connector,
(2) Disconnect power supply cable from −43/OUT connector,

(3) Disconnect ground cable from ground terminal,

(4) Disconnect ALM cable from ALM terminal,

3 Loosen two screws on the DC-DC CONV,

4 Extract the DC-DC CONV from the unit,

5 Put the screwdriver to the groove of the fuse holder and turns

the fuse holder counter clockwise,

6 Remove the fuse from the fuse holder,

7 Check conduction of the broken fuse using tester,

8 Remove the reserved fuse as described in step 5,

9 Check conduction of the reserved fuse using tester,

10 Replace the broken fuse with reserved one,

11 Set the replaced fuse to the fuse holder,

12 Put the screwdriver to the groove of the fuse holder and push it

into the DC-DC CONV,

13 Turn the screwdriver clockwise until the fuse holder is locked

up, (When the fuse holder is locked up, the groove of the fuse
holder is set to horizontal as shown in Fig 5-12.)

14 Check and replace another fuse in the same way as from Step 5

to Step 13,

15 Mount the DC-DC CONV to the unit,

5-53

CORRECTIVE MAINTENANCE ROI-S05751

Chart 5-6 (Cont’d)

Step Procedure

16 Tighten two screws on the DC-DC CONV,

17 Connect cables to the DC-DC CONV as reversed order in step

2,

18 Turn on the power switch on the DC-DC CONV,

19 Check that power is on.

20 Turn on the power switch on the IDU/DC-DC CONV UNIT,

21 Check that power is on.

Screw

RESERVE

!

CAUTION

HOT SURFACE

Avoid contact.

STD

G

−43V/OUT

Fuse Holder

RESERVE

(DC-DC CONV)

−

43V

G

ALM

OUT

FUSE (250V/8AH)

ALM

PWR LED

(Front)

G

PULL

PWR

SELV

SELV

PWR Switch

Reserved Fuse

Reserve Fuse (8A)

GAB250V8 Fuse
CBE-006255-001

PWR

Screw

5-54

Fig. 5-12 Fuse in the DC-DC CONV

ROI-S05749-05FE CONTENTS
August, 2007

NEC NLite E

6-38 GHz SONET DIGITAL RADIO SYSTEM

Section II OPERATION

CONTENTS

TITLE PAGE

1 GENERAL •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1-1

2 OPERATING EQUIPMENT ••••••••••••••••••••••••••••••••••••••••• 2-1

2.1 IDU Shelf ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••2-4

2.2 CTRL ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2-5

2.3 MODEM •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2-12

2.4 STM-1 INTFC ••••••••••••••••••••••••••••••••••••••••••••••••••••• 2-16

2.5 4P LAN INTFC (Optional) ••••••••••••••••••••••••••••••••••••• 2-18

2.6 GbE INTFC (Optional) •••••••••••••••••••••••••••••••••••••••••• 2-20

2.7 DC-DC CONV (Optional) •••••••••••••••••••••••••••••••••••••• 2-23

2.8 ODU ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2-25

3 SYSTEM SETUP ••••••••••••••••••••••••••••••••••••••••••••••••••••••3-1

3.1 Equipment Setup ••••••••••••••••••••••••••••••••••••••••••••••••• 3-1

3.2 Provisioning Setup ••••••••••••••••••••••••••••••••••••••••••••••• 3-4

3.3 Events and Performance •••••••••••••••••••••••••••••••••••••••3-7

3.4 Control ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-14

3.5 Setup Description •••••••••••••••••••••••••••••••••••••••••••••• 3-16

3.5.1 Automatic Laser Shutdown Control

(OPT INTFC) (SDH) ••••••••••••••••••••••••••••••••••••••••••••• 3-16

3.5.2 Automatic Protection Switching (APS)

(OPT INTFC Optional APS Configuration) (SDH) ••••••• 3-18

3.5.3 Automatic Transmitter Power Control •••••••••••••••••••• 3-23

3.5.4 Loopback Control •••••••••••••••••••••••••••••••••••••••••••••• 3-27

3.5.5 Link Loss Forwarding Control (LAN) •••••••••••••••••••••• 3-27

3.5.6 MS-AIS Generation (SDH) •••••••••••••••••••••••••••••••••••• 3-28

3.5.7 Cross Polarization Interference Canceller (XPIC

Reset Control •••••••••••••••••••••••••••••••••••••••••••••••••••• 3-30

3.5.8 Network Management (Optional) ••••••••••••••••••••••••••• 3-31

CL-1

CONTENTS ROI-S05749

TITLE PAGE

3.5.9 Functionality Classification ••••••••••••••••••••••••••••••••• 3-32

3.6 Protection Switching •••••••••••••••••••••••••••••••••••••••••• 3-33

3.6.1 1 + 1 Twin-path System ••••••••••••••••••••••••••••••••••••••• 3-33

3.6.2 Hot-standby System ••••••••••••••••••••••••••••••••••••••••••• 3-33

3.6.3 Switchover Control ••••••••••••••••••••••••••••••••••••••••••••• 3-34

CL-2
2 pages

ROI-S05749-05FE CONTENTS
August, 2007

CL-3

ROI-S05749 GENERAL

1. GENERAL

This section provides instructions for operation of the 6 to 38 GHz SONET
microwave radio system.

This section describes interface terminals and jacks, controls, indicators,
and test jacks. Use of the LCT is required for local operation, monitoring,
control and setup. For details of system and provisioning setup, refer to
Section IV NLite E LCT Manual.

1-1

GENERAL ROI-S05749

NEC NLite E

OC-3 OUT

LCT

NMS

MDP-150MB-1AA
INDOOR UNIT

SER. No.

WEIGHT: 4 kg (WITH OPTION)

−48 V 2.5A (WITH ODU & OPTION)

NEC Corporation

OC-3 IN

NE

DATE ,

TOKYO JAPAN

ALM

ONLINE

AUX/ALM

SC IN/OUT

MODEM(1)

INTFC (1)

MODEM(2)

IF IN/OUT

!

XIF OUT

G

XIF IN

XPIC CTRL

RESET

TX
RX

XPIC

G

PWR
ODU

MD/
CBL

SELV

INTFC (2)

CTRL

PULL

PWR

(Blank)

IDU 1+0

IF IN/OUT

!

XIF OUT

G

!

XIF IN

IF IN/OUT

XIF IN

XIF OUT

XPIC CTRL

XPIC CTRL

RESET

RESET

TX
RX

XPIC

TX
RX

XPIC

G

PULL

PWR
ODU
MD/
CBL

PWR

SELV

G

PULL

PWR
ODU
MD/
CBL

PWR

SELV

LCT

OC-3 IN

OC-3 OUT

NMS

NE

ALM

ONLINE ONLINE

AUX/ALM

SC IN/OUT

IDU 1+1

0678

(H2930)

MADE IN JAPAN

OC-3 OUT

OC-3 IN

PROTECT

EOW

CALL

OC-3 OUT

PROTECT

EOW

CALL

OC-3 IN

ONLINE

NLite E NEO

MEMORY

MMC

NLite E NEO

MEMORY

MMC

MAINT

MAINT

ALM

G

IDU

ALM

G

IDU

IF IN/OUT

!

XIF OUT

G

XIF IN

XPIC CTRL

XPIC

RESET

RX

(Blank)

G

TX

PULL

PWR
ODU
MD/
CBL

PWR

SELV

100M

LCT

PORT 1 PORT 2

NMS

WS

100M

NE

AUX/ALM

WS IN/OUT

ALM

.

M S

SC IN/OUT

EOW

PROTECT

CALL

PASOLINK NEO

MAINT

MEMORY

IDU

MMC

G

Equipped with LAN Interface for Main LAN (SONET)

NEC NLite E

TRP-( )G-1B

OUTDOOR UNIT (NHG)

SHIFT FREQUENCY

TX FREQUENCY

SERIAL No.

WEIGHT 3.5kg/ - 48V

NEC Corporation TOKYO JAPAN

CAUTION

Non-ionizing
radiation

0678

MHz SUB BAND

MHz

DATE

0.5A

-48V INPUT

Power down IDU before
disconnection or
connection of cable.

(NWA-009034)

TX
HIGH/LOW

MADE IN JAPAN

NEC NLite E

TRP-( )G-1B
OUTDOOR UNIT (NHG)

SHIFT FREQUENCY

SERIAL No.

WEIGHT 3.5kg/ - 48V

NEC Corporation TOKYO JAPAN

CAUTION

Non-ionizing
radiation

0678

MHz SUB BAND

DATE

0.5A

-48V INPUT

Power down IDU before
disconnection or
connection of cable.

(NWA-009034)

TX
HIGH/LOW

MADE IN JAPAN

1-2
2 pages

ROI-S05749 OPERATING EQUIPMENT

2. OPERATING EQUIPMENT

The indicators, switches, interface terminals and jacks for wiring with the
associated equipment are described here.

The IDU component modules listed in Table 2-1 are plugged-in from front
of the IDU shelf as shown in Fig. 2-1.

The component modules of the ODU shown in Fig. 2-2 are listed in Table
2-2.

Note: Use shielded cables which are connected to the RJ-45 connectors

to suppress interference from affecting the signal and to reduce
electromagnetic radiation which may interfere with other signal
cables.

Note:Twist power cables (+)/(−) to suppress inductive interference signals.

2-1

OPERATING EQUIPMENT ROI-S05749

1

IF IN/OUT

!

XIF OUT

G

XIF IN

XPIC CTRL

RESET

TX

RX

XPIC

2

G

PULL

PWR
ODU

MD/
CBL

PWR

SELV

LCT

NMS

4, or 5

NE

AUX/ALM

SC IN/OUT

EOW

PROTECT

5*

CALL

PASOLINK NEO

MAINT

MEMORY

IDU

MMC

G

1

IF IN/OUT

!

XPIC CTRL

RESET

XIF OUT

G

XIF IN

2

No. UNIT/MODULE NAME

MODEM

1

MODEM

2

DC-DC CONV

LAN INTFC

3

GbE INTFC

4

OC-3 INTFC

5

CTRL

6

G

TX

RX

XPIC

PULL

PWR
ODU

MD/
CBL

PWR

SELV

LCT

NMS

NE

Table 2-1 IDU COMPOSITION

H2930 MDP-150MB-1AA

Expandable

0 system

1 +

1 + 1 system

(X) (X)

−

(√) −

(√)
(√)
(√)

(X)

Notes: 1. (X) always equipped.

(√) optionally equipped.

2.

*1 selectable in setting program.
*2 for expanding power supply range

*3 for optional APS

(X)

6

3

AUX/ALM

SC IN/OUT

6

32QAM/128QAM *1

32QAM/128QAM *1

-20 to -60/+20 to +60 VDC *2

4-Port-LAN (for SONET) *3

GbE (for SONET)

OC-3 *3 for APS

PASO LINK NEO

PROTECT

EOW

CALL

MMC

REMARKS

.

MAINT

MEMORY

G

IDU

2-2

Fig. 2-1 IDU Composition

ROI-S05749 OPERATING EQUIPMENT

NLite E

2-3

RX LEV

MON

IFL

FG

6 - 38 GHz ODU

Table 2-2 ODU COMPOSITION

TRP-( )G-1B

MODULE

Name *

1 RF CKT H2202( ) H2203( ) H2204( ) H2225( ) H2205( ) H2229( ) H2230( ) H2231( ) H2234( )

2 IF CKT

3 PS

6 GHz 7 GHz) 8 GHz 10 GHz 11 G Hz 18 GHz 23 GHz 26 GHz 38 GHz

NWA-

009024( )

NWA-

009026( )

NWA-

009028( )

NWA-

009030( )

NWA-

009032( )

NWA-

009038( )

NWA-

009040( )

NWA-

009042( )

009048( )

—

—

Note: Component modules are enclosed in the ODU case.

Fig. 2-2 ODU Composition

NWA-

OPERATING EQUIPMENT ROI-S05749

2.1 IDU Shelf

G

G

Jack (IDU)

G Electrostatic Discharge (ESD) jack used to connect

wrist strap band.

Caution*:Engineers for maintenance of the e

quipment must take the
necessary steps to avoid bit errors or cause damage to the
modules due to electrostatic discharge. Wear a conductive
wrist strap connected to the ground jack (G) on the front of
the IDU to minimize static build-up during maintenance.

G

G

*

2-4

ROI-S05749 OPERATING EQUIPMENT

2.2 CTRL

LCT

NMS

AUX/ALM (D-Sub
Female 44 pins)
Input/Output Signal

NE

NMS

LCT

NE

AUX/ALM

AUX/ALM

SC IN/OUT

SC IN/OUT

PROTECT

EOW

EOW

CALL

PROTECT

CALL

MMC

PASOLINK NEO

MAINT

MEMORY

MMC

MAINT(amber)

MEMORY(amber)

IDU

IDU(red)

The CTRL generates various control signals based upon LCT setup data
and gathered operating status in the IDU and from the ODU, has SC,
EOW, LAN, NE, EXT ALM, HK, Cluster ALM signals interface. By
Connecting a PC, manual control, performance monitoring and system
setup can be performed.

Interface Signals (CTRL)

EOW: 1 CH

Frequency: 0.3 to 3.4 kHz (1020 Hz (Test Tone))

Level: −6 d

Bm

Impedance: 600 ohms

ALM: ALM 6 outputs/6 HK Inputs/ 4 HK Control outputs,

ster 4 Inputs/outputs

Clu

Output: Relay contact Form-C

Input: Photocoupler

Bz 1,2 IN: Signalling control extension input.

Call 1,2 OUT: Signalling control extension output.

EOW: EOW headphone jack

2-5

OPERATING EQUIPMENT ROI-S05749

Interface Signals (CTRL)

SC IN/OUT (D-Sub
Female 44 pins)
Input/Output Signal

NE2: Network Element

Level: RS-485

DSC (RS-232C): 2 CH

Bit rate: 9600 bps

Level: RS-232C

DSC (V.11): 2 CH

Bit rate: 64 Kbps

Level: V. 1 1

Impedance: 100 ohms

NE (RJ-45): Network Element

Level: 10 Base-T

LCT (USB): Serial interface USB-B type connector with PC

NMS (RJ-45): PNMS

Level: 10 Base-T

Indicators (CTRL)

LED Indication Remarks

MAINT Maintenance mode can be

selected by LCT, PNMT and
PNMS

Actively blinks: In progress of program data download.
Inactively blinks:Protect Mode for CTRL replacement

in ef

fect.

“The maintenance Mode

N” is selected”.

“O

MEMORY Memory Card (MMC) status. ON: Enable access to Memory Card

OFF: Disable access to Memory Card
Blinks: Accessing Memory Card

IDU IDU Summary alarm. Check ALM LEDs on each module to find the cause

nd/or connect LCT to check the performance condition.

a

Blinks: CPU or peripheral event occurred.

2-6

ROI-S05749 OPERATING EQUIPMENT

Switch (CTRL)

Switch Operating Remarks

CALL Transmits EOW calling signal to sound the

buzzer in the opposite station.

PROTECT Prevent service interruption when the CTRL

dule is replaced.

mo

User Interface Pin Assignment (CTRL)

Terminal Description

CTRL

ALM/AUX IN/OUT

Service channel data input/output

(D-sub Female, 44 Pins)

Pins 1 (+) and 16 (–) EOW input 1

Pins 2 (+) and 17 (–) EOW output 1

Pins 3 (+) and 18 (–) EOW input 2

Pins 4 (+) and 19 (–) EOW output 2

Pin 5 Ground

Pins 25 (COM), 40 (NC)

1 (NO) ⎯ RL1*1

and 1

Maintenance alarm output

Normal state : Closed Open
Alarm state : Open Closed

Accessing the Memory Card (MMC)
is required to apply the function.

Between Between

Pins 25 and 40 Pins 25 and 11

Pins 24 (COM), 39 (NC)
and 10 (NO) ⎯ RL2*1

Pins 23 (COM), 38 (NC)
and 9 (NO) ⎯ RL3

IDU CPU/PS1/PS2 alarm output

Between Between

Pins 24 and 39 Pins 24 and 10
Normal state : Closed Open
Alarm state : Open Closed

ODU1/ODU2 alarm output*2

Between Between

Pins 23 and 38 Pins 23 and 9
Normal state : Closed Open
Alarm/Event state : Open Closed

2-7

OPERATING EQUIPMENT ROI-S05749

User Interface Pin Assignment (CTRL)

Terminal Description

Pins 22 (COM), 37 (NC)

ODU CPU1/ODU CPU2/Cable Open alarm output*2

and 8 (NO) ⎯ RL4

Normal state : Closed Open
Alarm/Event state : Open Closed

Pins 21 (COM), 36 (NC)

IDU total alarm output*2

and 7 (NO) ⎯ RL5

Normal state : Closed Open
Alarm/Event state : Open Closed

Pins 20 (COM), 35 (NC)

High BER1/High BER2 alarm output*2

and 6 (NO) ⎯ RL6

Normal state : Closed Open
Alarm/Event state : Open Closed

Pins 15 (+) and 14 (−) HK1 alarm input*3

Normal state : Open
Control/Event state : Closed

Pins 13 (+) and 12 (−) HK2 alarm input*3

Normal state : Open

Control/Event state : Closed

Between Between

Pins 22 and 37 Pins 22 and 8

Between Between

Pins 21 and 36 Pins 21 and 7

Between Between

Pins 20 and 35 Pins 20 and 6

Pins 29 (+) and 28 (−) HK3/Cluster4 alarm input*3

Normal state : Open
Control/Event state : Closed

Pins 27 (+) and 26 (−) HK4/Cluster3 alarm input*3

Normal state : Open

Control/Event state : Closed

Pins 44 (+) and 43 (−) HK5/Cluster2 alarm input*3

Normal state : Open
Control/Event state : Closed

Pins 42 (+) and 41 (−) HK6/Cluster1 alarm input*3

Normal state : Open

Control/Event state : Closed

Pin 30 Buzzer input 1

Pin 31 Call output 1

Pin 32 Buzzer input 2

Pin 33 Call output 2

2-8

ROI-S05749 OPERATING EQUIPMENT

User Interface Pin Assignment (CTRL)

Terminal Description

CTRL

SC IN/OUT
(D-sub Female, 44 Pins)

Pins 1 (+) and 2 (–) NE2 TXD

Pin 3 Ground

Pins 4 (+) and 5 (–) V.11-1 TX data input

Pins 6 (+) and 7 (–) V.11-1 RX data output

Pins 8 (+) and 9 (–) V.11-2 TX data input

Pins 10 (+) and 11 (–) V.11-2 RX data output

Pins 12 and 13 (G) RS-232C-1 data input

Pins 14 and 15 (G) RS-232C-2 data input

Pin 16 NE2 RXD TERM

Pins 17, 18 Ground

Pins 19 (+) and 20 (–) V.11-1 TX clock input (co-dir.) or output (contra-dir.) *4

Pins 21 (+) and 22 (–) V.11-1 RX clock output

Pins 23 (+) and 24 (–) V.11-2 TX clock input (co-dir.) or output (contra-dir.) 4*

NE2/DSC Service channel data input/output

Pins 25 (+) and 26 (–) V.11-2 RX clock output

Pins 27, 28, 29 Ground

Pins 30 (+) and 31 (–) NE2 RXD

Pin 32 Ground

Pins 33 (+) and 34 (–) V.11-1 TX frame pulse input (co-dir.) or output (contra-dir.) *4

Pins 35 (+) and 36 (–) V.11-1 RX frame pulse output

Pins 37 (+) and 38 (–) V.11-2 TX frame pulse input (co-dir.) or output (contra-dir.) *4

Pins 39 (+) and 40 (–) V.11-2 RX frame pulse output

Pins 41 and 42 (G) RS-232C-1 data output

Pins 43 and 44 (G) RS-232C-2 data output

2-9

OPERATING EQUIPMENT ROI-S05749

User Interface Pin Assignment (CTRL)

Terminal Description

LCT

Local craft terminal (LCT) data input/output

(USB connector type B)

Pin 1 Vbus

Pins 2 (–) and 3 (+) D

Pin 4 Ground

NMS (RJ-45) PNMS data (10Base-T) input/output

Pins 1 (+) and 2 (–) NMS TXD

Pins 3 (+) and 6 (–) NMS RXD

Pins 4, 5, 7 and 8 Not Connected

NE (RJ-45) NE data (10Base-T) input/output

Pins 1 (+) and 2 (–) NMS TXD

Pins 3 (+) and 6 (–) NMS RXD

Pins 4, 5, 7 and 8 Not Connected

Notes: *1: RL1 (Maintenance) and RL2 (IDU CPU/PS1/PS2

ALM OUTUT) are fixed and can not be changed to
other items. The relay contact is rated at 0.2 A.

*2: These alarm items are assigned at the factory (default

setting) and can be changed by the LCT as shown in
Table 2-3 in Section 1 (Alarms may be selectively
assigned to RL3 to RL6).

*3: Photocoupler interface; resistance of open input

terminal is more than 200 kilo ohms. Closed input
terminal is less than 50 ohms.

*4: V11 interface for the TX clock and frame pulse input/

output depend on co-/contra-directional mode setting
in the LCT provisioning menu.

2-10

ROI-S05749 OPERATING EQUIPMENT

EOW Connection

When EOW signal is connected between two IDUs, perform wiring as follows.

Terminal Station A

EOW 4W S

EOW 4W R

Buzzer IN

Call OUT

ALM/AUX IN/OUT

(D-Sub, 44 Pins)

16
17
18
19

30
31
32
33

IDU Dir. B

Back -to- Back Station B

1
2
3
4

1
2
3
4

16
17
18
19

30
31
32
33

EOW
4W S

EOW
4W R

Buzzer IN

Call OUT

EOW
Extension

IDU Dir. A

ALM/AUX IN/OUT

(D-Sub, 44 Pins)

ALM/AUX IN/OUT

(D-Sub, 44 Pins)

1
2
3
4

16
17
18
19

30
31
32
33

IDU Dir. C

2-11

OPERATING EQUIPMENT ROI-S05749

2.3 MODEM

G

IF IN/OUT

IF IN/OUT

!

XIF IN

XIF OUT

XPIC RESET(amber)

XPIC CTRL

XPIC CTRL

XIF OUT

XIF IN

TX (green)

RX (green)

TX

RX

XPIC

RESET

PWR(green)
ODU(red)
MD/CBL(red)

PWR
ODU

MD/
CBL

SELV

SELV

PULL

PWR

PWR

Caution: Do not apply to the equipment a voltage that varies sharply. The equipment

operation may be impaired.

Caution: Do not remove/connect the IF cable with the IDU power ON, Turn the IDU

power OFF before connecting/disconnecting the IF cable, or equipment may
cause damaged.

Caution: Do not insert/extract the MODEM with the power ON, turn the IDU power

OFF and remove all cables connected to the MODEM before insert/extract the
MODEM, or MODEM may be damaged.

Caution: The top surface of the IDU shelf above MODEM is hot in operation.

The MODEM provides the 32QAM/128QAM Modulation/Demodulation
for, 10/100Base T(x)/1000 Base T (LAN) or OC-3 (SONET) data
transmission and following main functions.

- Forward Error Correction using RS/Interleave

- BER (High BER/Low BER) detection/indication/release for internal
d external

an

- Reducing ODU output signal distortion using BB Linearizer

- Equalization using Transversal Equalizer

- XPIC ODU synthesizer s

ynchronization control

- Interfered signal from opposite polarization cancellation (XPIC)

- IDU/ODU power supply

- System power on/off

2-12

ROI-S05749 OPERATING EQUIPMENT

Interface Signals (MODEM)

IF IN/OUT (TNC Female)

TX Frequency: 340 MHz

RX Frequency: 140 MHz

Power supply: −48

V

Impedance: 50 ohms

Connecting IF Cable length:

5D-FB: less than 150 m
8D-FB: less than 300 m
10D-FB: less than 350 m

G (Screw): Ground terminal

(5 mm square cable (more than 2.5 mm diameter

ble) (AWG#10) is recommended to apply for the

ca
frame ground. The proper press fix terminal tool
shall be used.)

SELV (Molex M5569-04A1,
4 pins) (DC IN)

Input Voltage: −48 V DC

XIF IN/XIF OUT

Only used for XPIC system between two IDUs

(negative), + (positive, ground)

(Receptacle IEC 169-13 (1.0/

))

2.3

XIF IN: IF signal of opposite polari

(connect to XIF OUT of the other MODEM)

zation input.

XIF OUT: IF signal for opposite polarization output.

(connect to XIF IN of the other MODEM)

Frequency: 140 MHz

Impedance: 75 ohms

XPIC CTRL
(D-Sub 15 pins, Serial Port)

Automatic/Remote XPIC reset control signal inte

Only used for XPIC system between two IDUs
(connect to XPIC CTRL of the other MODEM)

rface between mutual MODEM.

2-13

OPERATING EQUIPMENT ROI-S05749

Indicators (MODEM)

LED Indication Remarks

PWR The PWR switch of the MODEM is turned

on.

Transmit RF power of the ODU decreased
approx. −3 d

B from preadjusted ATPC

minimum (MIN) level in provisioning.

DC power is supplied to the
ODU also.

Check Metering using LCT for
local and/or opposite site in
Maintenance menu

Receiver input level of the ODU falls below
squelch level.

ODU

APC loop of local oscillator in ODU is

locked.

un

IF signal from the MODEM to ODU is lost.

Blinks when IF cable is open circuit.

Connected ODU is not matched with

ventory.

in

MD/CBL Blinks when IF cable is short circuit.

TX (only 1+1) Selected status of ODU TX When TX mute control: LED

f

Of

RX (only 1+1) Selected status of MODEM RX output signal When RX SWO switched to

posite: LED Off

op

XPIC RESET XPIC function is OFF condition Only XPIC configuration.

Propagation condition
deteriorated or XPIC is rese

t

from LCT control.

Switches (MODEM)

Switch Operating Remarks

PWR IDU and ODU power On/Off switch. Refer to Start-up and Shut-down the

Equipment in Maintenance Section

2-14

ROI-S05749 OPERATING EQUIPMENT

User Interface Pin Assignment (MODEM)

Terminal Description

SELV

SELV (DC IN)
(Molex M5569-04A1 Connector,

−48 V DC power input
Note: Only −48

V (−40.5 to −57 V) is available.

4 Pins)

Pins 1 and 3 Ground
Pins 2 and 4 −48

V

IF IN/OUT

TNC Jack (Female) * IF signal IN/OUT and PS OUT to the ODU

XPIC CTRL

(D-Sub Female, 15 pins) Used for interconnection between IDUs in XPIC

configuration.

Pins 1 (+) and 6 (–) XPIC SV TXD

Pins 2 (+) and 7 (–) XPIC SV RXD

Pin 3 Ground

Pins 4 (+) and 9 (–) XPIC SEL IN

Pins 5 (+) and 10 (–) XPIC SEL OUT

Pins 8 (+) and 12 (–) XPIC RESET IN

Pin 11 Ground

Pins 13 (–) and 14 (+) XPIC RESET OUT

Pin 15 Ground

Note: * It is recommended that TNC (Male) L-angle connector for

the 8D-FB IF cable is used to connect it to the IDU. When
the N (Male) straight connector is attached to the 5D-FB or
10D-FB IF cable, use of the TNC (Male) - N (Female) (NJ­TNCP-LA) L-angle adapter is needed.

2-15

OPERATING EQUIPMENT ROI-S05749

2.4 OC-3 OPTICAL INTFC

STM-1 (OPT) INTFC

STM-1 OUT

STM-1 OUT

STM-1 IN

STM-1 IN

ALM

ONLINE

ALM (red)

ONLINE(green)

Caution: Do not insert/extract the OC-3 INTFC with the power ON. Turn OFF the PWR switch

on the MODEM and remove all cables connected to the OC-3 INTFC before inserting/
extracting theOC-3 INTFC, or that INTFC may be damaged.

The OC-3 INTFC provides an optical signal interface only. The module
performs the following functions:

- Coded Mark Inversion (CMI) to Non Return to Zero (NRZ)
nversion

co

- Optical to Electrical conversion

- RSOH termination

- Stuffing control

- Hitless switching (for 1+1 configuration)

- Performance monitoring (con

forms to G.826/G.828)

- Automatic Laser Shut Down (ALS)

- Near End/Far End loopback

2-16

ROI-S05749 OPERATING EQUIPMENT

Interface Signals (OC-3 INTFC)

OC-3 IN/OUT

Optical OC-3 Input/Output, G.957

LC

Optical

Type: G.9 5 7

Bit Rate: 155.520 Mbps

Level: L-1.1: 0 to −8 d

S-1.1: −8 to −15

Bm (TX)/−10 to −34 dBm (RX)

dBm (TX)/−8 to −28 dBm (RX)

Code: NRZ

Wavelength: 1310 nm

Indicators (OC-3 INTFC)

LED Indication Remarks

LOSS of OC-3 from MUX is detected. Check MUX and wiring.

Frame synchronization of input OC-3 signal
from MUX is

lost.

Check MUX and wiring.

BER (E-BER, DMR or MUX) is worse than

-3

to 10-5, selectable).

-5

to 10-9, selectable).

ALM

pre

set value (10

BER (SD, DMR or MUX) is worse than preset

lue (10

va

Frame synchronization of input OC-3 signal

adio is lost.

from r

Mounting module is not matched with

ventory.

in

ONLINE Online status of Working/Standby in APS: ON

Offline status of Working/Standby in APS: OFF
Online status of Working w/o APS: ON

Check RSL, Interference and TX
power at

opposite site when BER

ALM occurs.

Check OC-3 transmission at the
opposite site, ODU or MODEM in
local.

Change LCT setting or other
( )INTFC module.

2-17

OPERATING EQUIPMENT ROI-S05749

2.5 4P LAN INTFC

4P LAN

PORT1
PORT2

PORT 1 PORT 2

100M

100M

100M

PORT3
PORT4

PORT 3 PORT4

ALM

LED(red)

ALM

100M

4P LAN INTFC

The 4P LAN INTFC (optional) is installed into the Main-INTFC slot
(Slot1) in the system configuration and it provides 4 Port LAN Fast

rnet interfaces. The LAN interface is used 4 Port shared (P1-P4)

Ethe
mode, 2 Port (P1-P

2/P3-P4) shared mode or separated (P1/P2/P3/P4)

mode.

Separated

(1)

Dir-A

Disabled

P3

P1

P2

P4

Switching

P1-P2 Shared
P3-P4 Shared

(2)

Dir-A

(4)

Dir-A

P1-P4 Shared

(3)

Dir-A

P3

P1

P2

P4

(5)

P1P2P3

Dir-A

P4

Enabled

P1P2P3

P4

P3

P1

P2

P4

2-18

ROI-S05749 OPERATING EQUIPMENT

User Interface Signals (4P LAN INTFC)

LAN PORT1 to
PORT4 (RJ-45)

LAN interface Port 1, Port 2, Port 3 and Port 4.
Selectable 2 Mbps to 100 Mbps CH is assigned for LAN.

Input/Output Signal: 10/100Base-T(x) Auto-sensing or fixed

Flow control: Full duplex or Half duplex

Forwarding mode: Store-and-Forwarding

Indicators (4P LAN INTFC)

LED Indication Remarks

100M LAN signal is in 100BASE-TX mode.

LINK LAN and associated equipment are linked

nd flashing under the exchanging the

a
packet.

COLLISION/
DUPLEX

Input/Output LAN signal is in Full
Duplex mode.

Flashing when a collision

condition occurs.

ALM

The module is extracted. Mount the module.

Mounting module is not matched with

ventory.

in

Change LCT setting or other ( )INTFC
module.

LAN link failure occurs. Check LAN cable connection.

Module failure occurs. Replace the module with a spare.

2-19

OPERATING EQUIPMENT ROI-S05749

2.6 GbE INTFC

1000BASE-SX

1000BASE-SX

OUT

INDICATOR

IN

The GbE INTFC (optional) provides 1000BASE-SX/1000BASE-T
interface. The GbE INTFC is installed into the Main-INTFC slot (Slot1)
instead of the OC-3 INTFC in the SONET (128 QAM) system

figuration. The signal is connected either SFP (for 1000BASE-SX) or

con
RJ-45 (for 1000MASE-T).
These bytes (E1/F1/DCCr) are available between radio links. The RMON

LINE side is available but DMR side is unavailable. The maximum

for
passed packet size is 9600 bytes.

The GbE INTFC ia applicable together with the LAN INTFC.

1000BASE-T

ALM

PORT

User Interface Signals (GbE INTFC)

1000BASE-SX: Gigabit Ether signal, Optical Interface

1000BASE-SX IN:
1000BASE-SX OUT:

Ether signal Input
Ether signal Output

(SFP Optical Interface

ector)

Conn

Speed & Duplex: 1000 Mbits Full Duplex/Auto Negotiation fixed

Flow control: Flow control ON or OFF selectable

Link Loss

Disabled/Enabled selectable

Forwarding:

1000BASE-T: Gigabit Ether signal, Electrical Interface
1000BASE-T Port:

Ether signal Input/Output

(RJ-45 Interface
Conn

ector)

Speed & Duplex: 1000 Mbits Full Duplex/Auto Negotiation fixed

Flow control: Flow control ON or OFF selectable

Link Loss

Disabled/Enabled selectable

Forwarding:

2-20

ROI-S05749 OPERATING EQUIPMENT

User Interface Pin Assignment (GbE INTFC)

Terminal Description

1000BASE-SX

Multimode Fiber/LC Connector

(SFP Fiber connector)

IN (Right side) 1000BASE-SX Input

OUT (Left side) 1000BASE-SX Output

1000BASE-T
(RJ-45, 8 pins)

Pin 1 DATA-A

Pin 2 DATA-A

Pin 3 DATA-B

Pin 4 DATA-C

Pin 5 DATA-C

Pin 6 DATA-B

Pin 7 DATA-D

Pin 8 DATA-D

1000BASE-T Input/Output
(MDI/MDI-X)

+

/ DATA-B

−

/ DATA-B

+

/ DATA-A+

+

/ DATA-D+

−

/ DATA-D

−

/ DATA-A

+

/ DATA-C

−

/ DATA-C

+

−

−

+

+

−

Note: Cable connector: CAT5e/RJ-45

2-21

OPERATING EQUIPMENT ROI-S05749

Indicators (GbE INTFC)

LED Indication Remarks

Indicator Indicates which Port is applied to the signal interface.

When the indicator is flashing slowly, the
input si
interface port which is set to be used.

When the indicator is flashing fast, the
input/output signal is on in the
corresponding interface port
to be used.

When the indicator is lit steady, the signal
is linked in the corresponding interface
port

When the indicator is unlit, the
corresponding interface which port is
to no use.

gnal is off in the corresponding

which is set

which is set to be used.

set

ALM

The module is extracted. Mount the module.

Mounting module is not matched with

ventory.

in

Change LCT setting or other ( )INTFC
module.

Module failure occurs. Replace the module with a spare.

LOS from DMR is detected.

LOF from DMR is detected.

Excessive-BER alarm condition from

Check IDU/ODU and radio link.

DMR occurs.

SD from DMR is detected.

GbE output signal for fiber cable is
interrupted.

Replace the module with a spare. (SFP
mode o

nly)

LAN link failure occurs. Check LAN cable connection.

2-22

ROI-S05749 OPERATING EQUIPMENT

2.7 DC-DC CONV

DC-DC CONV

−

STD

43V

G
OUT

G

−

43V OUT

ALM

ALM

FUSE (250V/8AH)

PWR LED(green)

FUSE (250V/8AH)

PWR

Note: If the PWR LED is not lit though the PWR switch has set to ON, set the PWR switch to

OFF, remove two fuses from the module and check the conduction of them.

Caution: Do not apply to the equipment a voltage that varies sharply. The equipment

operation may be impaired.

Caution: Do not remove/connect the power supply cable with the PWR switch ON, Turn the

PWR switch OFF before connecting/disconnecting the power supply cable IN or
OUT, if not, module may be damaged.

SELV

+

PULL

PWR

PWR

SELV

The DC-DC CONV (optional) converts 20 to 60 V or −20 to −60 V DC
input to

−43 V stable DC voltage. The module applies when the Nlite E

ODU is connected to the IDU.

Interface Signals (DC-DC CONV)

SELV

(Molex M5569-04A1, 4 pins) (DC IN)

Input Voltage: −20

to −60 V/+20 to +60 V DC

−43V OUT
(Molex M5569-02A1,
2 pins) (DC OUT)

Output: −43

V/1.6A

G (Screw): Ground terminal

(5 mm square cable (more than 2.5 mm diameter cable)

WG#10) is recommended to apply for the frame

(A
ground. The proper press fix terminal tool shall be
used.)

+

ALM: Power supply ALM signal output

2-23

OPERATING EQUIPMENT ROI-S05749

Indicators (DC-DC CONV)

LED Indication Remarks

PWR The PWR switch of the DC-DC CONV is

turned on.

Switches (DC-DC CONV)

Switch Operating Remarks

PWR IDU and ODU power on/off switch. Refer to Start-up and Shut-down the

Equipment in Maintenance Section

User Interface Pin Assignment (DC-DC CONV)

Terminal Description

SELV

SELV (DC IN)

−20 to −60/20 to 60 V DC power input

(Molex M5569-04A1 Connector,
4 Pins)

Pins 1 and 3 0 V /(or +20 to +60 V)
Pins 2 and 4 −20

to −60 V/(or 0 V)

−43V OUT
(Molex M5569-02A1,

2 pins) (DC OUT)

−43

V DC power output (connects to the SELV connector of

the MODEM module using accessory cable)

Pin 1 Ground
Pin 2 −43

V

ALM Power supply ALM signal output

(D-Sub Female, 9 pins)

Pins 6 (COM), 1 (NC) and

)

2 (NO

PS and input voltage alarm output

Between Between

Pins 1 and 6 Pins 6 and 2
Normal state : Closed Open
Alarm state : Open Closed

2-24

Pin 9 Ground

Pins3,4,5,7,8 No connected

ROI-S05749 OPERATING EQUIPMENT

2.8 ODU

RF IN/OUT

NLite E

RX LEV

IFL

MON

FG

RF IN/OUT

(FRONT VIEW)

FG (Frame Ground)

RX LEV MON

(REAR VIEW)

IFL (IF IN/ OUT)

Coaxial Cable Type (6/7/8 GHz)

The ODU receives 340 MHz IF signal from the IDU and converts it to an
RF signal using a local signal generated by a synthesized local oscillator.
This RF signal is then sent to the antenna through the BPF which limits the
RF transmit signal dispersion. The TX output level is controlled to the
specified from the IDU corresponded to the QPSK 32QAM or 128QAM
modulation.

(REAR VIEW)

Antenna Direct Mounting Type

RF IN/OUT

(REAR VIEW)

WG Type (6/7/8 GHz)

The RF signal received from the antenna is

amplified to the required level.
Afterward the signal is converted into the 140 MHz IF signal by mixing
with a local signal generated by a synthesized local oscillator. Then the
140 MHz IF signal is sent to the IDU through the IF cable.

2-25

OPERATING EQUIPMENT ROI-S05749

Interface Signals (ODU)

IFL (N Female)

TX Frequency 340 MHz

RX Frequency: 140 MHz

Power supply: −48

V

Impedance: 50 ohms

Connecting IF Cable length:

5D-FB: less than 150 m
8D-FB: less than 300 m
10D-FB: less than 350 m

FG (Screw) Frame ground, connecting near by ground point.

RF IN/OUT RF signal interface.

- N female connector for the 6/7/8 GHz ODU with coaxial
cable connection.

- NEC proprietary flange for the 10 to 38 GHz ODU with

enna mounting (direct/OMT/HYB COMB/TX ATT).

ant

- Waveguide connection flange;
6 GHz: PDR70
7/8 GHz: PDR84
10/11 GHz: PDR100
18/23 GHz: PBR220
38 GHz: PBR320

Monitoring Terminal (ODU)

Terminal Operating Remarks

RX LEV MON: Monitoring RX LEV in AGC voltage

using the digital voltmeter or PASOLINK

Use LCT to check the RX LEV in

Maintenance.
MONITOR unit * for antenna
orientation.

Note*:In order to measure exact performance of AGC V at the

RX LEV MON, it is mandatory r
Alignment Mode to ON as the AGC voltage indication is
not guaranteed outside Antenna Alignment Mode.

It is necessary to set to Antenna Alignment Mode every
time monitor the RX l

evel with the NLite E MONITOR

unit.

2-26

equired to set Antenna

ROI-S05749 SYSTEM SETUP

3. SYSTEM SETUP

This section provides system setup to make up proper system
configuration. The setup is performed accessing to the LCT program using
the PC. For the detail procedure, refer to Section IV Appendix LCT
Operation Manual.

3.1 Equipment Setup

The equipment setup menu decides system fundamental configuration.

Note: For the details of setup item of the LAN PORT USAGE, refer to the
LAN INTERFACE (10/100BASE T(X)) Application and Setting in Section
IV.

3-1

SYSTEM SETUP ROI-S05749

Equipment Setup for SONET

User Interface OC-3

GbE over OC-3
2Port LAN over OC-3

Redundancy Setting 1+0(TERM)

1+1(Hot Standby TERM)
1+1(Twinpath TERM)

INTFC Main (WORK) OC-3(Optical)

OC-3(Electrical)
GbE over OC-3 When the “SONET GbE over OC-3” is

2Port LAN over OC-3

INTFC SUB (PROT) Not Used

OC-3 (Optical)
WS
WS/LAN

XPIC Usage Not Used

Used (Main Master)
Used (SUB Master)

APS Function Unavailable

Available
Modulation Scheme 128QAM (fixed)
Transmission Capacity 156MB (fixed)

selected for User Interface.

TX RF Frequency(No.1) [MHz]
TX RF Frequency(No.2) [MHz]
RX RF Frequency(No.1) [MHz]
RX RF Frequency(No.2) [MHz]
Frame ID(No.1) (Up to #32)
Frame ID(No.2) (Up to #32)
TX Power Control MTPC

ATP C
LAN Port Usage (Main) USED (fixed when GbE INTFC is applied.)
LAN Capacity(Main) 150Mbps (fixed when GbE INTFC is applied.)
LAN Port Usage (Main) P1=75MB/P2=75MB (selectable when LAN INTFC is applied.)

P1=100MB/P2=50MB

Best Effort

P1=100MB/P2=Not Used
LAN Capacity(Main) 150Mbps (fixed when LAN INTFC is applied.)
LAN Port Usage (SUB) P1-2 Shared/1Port Only(WS)

P1-2 Shared/1Port Only(SC)
LAN Capacity(SUB) 64kbps

128kbps

192kbps

256kbps

2Mbps

3-2

ROI-S05749 SYSTEM SETUP

Equipment Setup for SONET

---ODU FREQ INF--­TX Start

Frequency(No.1) [MHz]
TX Stop Frequency(No.1) [MHz]
Frequency Step(No.1) [MHz]
Shift Frequency(No.1) [MHz]
Upper/Lower(No.1)
Sub Band(No.1)
TX Start

Frequency(No.2) [MHz]
TX Stop Frequency(No.2) [MHz]
Frequency Step(No.2) [MHz]
Shift Frequency(No.2) [MHz]
Upper/Lower(No.2)
Sub Band(No.2)

3-3

SYSTEM SETUP ROI-S05749

3.2 Provisioning Setup

The provisioning setup menu determines system fundamental functions.

SONET Provisioning Setup

Provisioning

BER Threshold Setting High BER Threshold

Low BER/E BER(DMR)
SD(DMR)
E BER(MUX)
SD(MUX)

BER Threshold Setting High BER Threshold 1E-3 1E-4 1E-5

Low BER Threshold 1E-6 1E-7 1E-8 1E-9
E-BER (DMR) 1E-3 1E-4 1E-5
SD (DMR) 1E-6 1E-7 1E-8 1E-9
E-BER (MUX) 1E-3 1E-4 1E-5
SD (MUX) 1E-6 1E-7 1E-8 1E-9

SC Assignment RS-232C-1/2

V11-1/2

V-11-1/2 Direction Setting

LAN Port Setting
(For GbE INTFC)

LAN Port Setting
Switching Function Disable Enable
Port
Media Type SFP RJ-45
Speed & Duplex AUTONEG (1000MB Full Duplex).)
Flow Control Off On
Link Loss Forwarding Disabled Enabled

Not Used SC1 SC2 SC3 SC4
E1 (MUX)F1(MUX)E1(DMR)F1(DMR)

Not Used SC1 SC2 SC3 SC4
E1 (MUX) F1(MUX) DCCr(MUX) E1
(DMR) F1(DMR) DCCR(DMR) F1(DMR)

Co-directional Contra-directional

3-4

ROI-S05749 SYSTEM SETUP

LAN Port Setting
(For LAN INTFC)

LAN Port Setting
(For LAN INTFC)

INTFC (Main) Setting
Switching Function
Clock Souce Setting Internal Clock DMR Internal -> Clock
Port1
Port Usage Not Used Used
Speed & Duplex AUTONEG (Auto-MDI/MDX)

10M-Half (MDI)
10M-Full (MDI)
100M-Half (MDI)
100M-Full (MDI)
10M-Half (MDIX)
10M-Full (MDIX)
100M-Half (MDIX)

100M-Full (MDIX)
Flow Control Off On
Collision Report Not Report Report
Port2
Port Usage Not Used Used
Speed & Duplex AUTONEG (Auto-MDI/MDX)

10M-Half (MDI)

10M-Full (MDI)

100M-Half (MDI)

100M-Full (MDI)

10M-Half (MDIX)

10M-Full (MDIX)

100M-Half (MDIX)

100M-Full (MDIX)
Flow Control Off On
Collision Report Not Report Report
Link Loss Forwarding Disabled Enabled
INTFC (SUB) Setting
Switching Function Disabled Enabled
Port1
Port Usage Not Used Used
Speed & Duplex AUTONEG (Auto-MDI/MDX)

10M-Half (MDI)

10M-Full (MDI)

100M-Half (MDI)

100M-Full (MDI)

10M-Half (MDIX)

10M-Full (MDIX)

100M-Half (MDIX)

100M-Full (MDIX)
Flow Control Off On
Collision Report Not Report Report
Link Loss Forwarding Disabled Enabled

Port2
(Items for Port 2 are same as the Port1)

3-5

SYSTEM SETUP ROI-S05749

OC-3 Setting MS-AIS Generation Disabled Enabled
ALS ALS Function Disabled Enabled

ALS Interval 60sec 180sec 300sec

TX Power Control ATPC Threshold Level(No.1/2) [dBm]

Additional ATT(No.1/2 [dB]
ATPC Range(MAX)(No.1/2) [dB]
ATPC Range(MIN)(No.1/2) [dB]
ATPC Power Mode(No.1/2) HOLD Max MIN

MTPC TX Power (No.1/2) [dBm]
ATPC Threshold Level(No.1/2) [dBm]
Additional ATT(No.1/2) [dB]

Condition for TX/RX SW TX SW Priority

RX SW Priority
RX SW Maintenance Mode
RX SW Condition-Early Warning

Condition for APS APS Maintenance Mode

APS Condition-SF(PROT)
APS Condition-Signal Degrade-SD(B1)
Lock in Usage
Lock in Count [times]
Lock in Detect Time [min]
Lock in Hold Time [hours]

Relay Setting ALM output for RL1 to RL6

HK output for RL3 to RL6
Cluster1 to Cluster4 input
Cluster1 to Cluster4 output

TCN Threshold(15min) DMR/ OCR/RCVR

MUX OCR/RCVR

TCN Threshold(1day) DMR/ OCR/RCVR

MUX OCR/RCVR

PMON Select RX Level TCN Threshold [dBm]

SES Activation Condition

Others EOW2 External Setting

Alarm Correlation Capacity

Non-Priority Priority No.1

Non-Priority Priority No.1

Manual Forced

Included EW Excluded EW

Manual Forced

Priority High Priority Low

Included SD Excluded SD

Not Used Used

Out

HK

Disabled Enabled

Out

OFS

UAS

ES

SES

BBE

SEP

OFS

UAS

ES

SES

BBE

SEP

30[%] 15[%]

Normal Invert

Off On

3-6

ROI-S05749 SYSTEM SETUP

3.3 Events and Performance

The alarm and status condition are based upon equipment setup and
provisioning setup, therefore indication items vary depending on the those
setup.

The summarized event and performance monitoring that are displayed on
the LCT PC are listed in the following table. For the detailed items, refer
to Section IV Appendix LCT OPERATION MANUAL.

3-7

SYSTEM SETUP ROI-S05749

Event List SONET

Alarm Status

ODU

ODU
TX Power
TX Input
RX Level
APC
ODU CPU
Mute Status
LO REF : only XPIC configuration
TX SW Status : only 1+1 configuration
RX SW Status : only 1+1 configuration

MODEM

MODEM
MODEM Unequipped
LOF
Route ID
High BER
Low BER
Early Warning
MOD
DEM
Input Voltage
Power Supply
IF Cable Short
Linearizer Status
Linearizer Fail
Cable EQL
XIF
XCTRL : only XPIC configuration
XPIC Status
XREF
ATPC Power Mode

CTRL

CTRL Module
MMC Mount
APS SW Fail : only APS configuration
APS Online Status : only APS configuration
APS Lock in Status : only APS configuration
XCTRL : only XPIC configuration
XCTRL Mode Mismatch : only XPIC configuration

UAE

OC-3(1)/UAE(MUX)
OC-3(1)/UAE(DMR)

3-8

ROI-S05749 SYSTEM SETUP

Event List SONET

INTFC (Main)

Unequipped
Type Mismatch
OC-3(1) LOS (MUX)
OC-3(1) LOS (DMR)
OC-3(1) LOF (MUX)
OC-3(1) LOF (DMR)
OC-3(1) Output Control
OC-3(1) E-BER (MUX)
OC-3(1) E-BER (DMR)
OC-3(1) SD (MUX)
OC-3(1) SD (DMR)
OC-3(1) In-Phase
OC-3(1) TF

INTFC (Main)

Unequipped
Type Mismatch
Module
LAN Link
Link Loss Forwarding
Speed & Duplex

LOS (DMR)
LOF (DMR)
E-BER (DMR)
SD DMR
Inphase
TF

GbE INTFC

3-9

SYSTEM SETUP ROI-S05749

Event List SONET

INTFC (Sub)

INTFC(2) Unequipped
OC-3(2) LOS (MUX)
OC-3(2) E-BER (MUX)
OC-3(2) E-BER (DMR) OPT INTFC applies APS
OC-3(2) SD (MUX)
OC-3(2) SD (DMR)
OC-3(2) Output Control
OC-3(2) In-Phase
OC-3(2) LOS (DMR)
OC-3(2) LOF (MUX)
OC-3(2) LOF (DMR)
OC-3(2) TF
Unequipped
Type Mismatch
Module
LAN Link *1
LAN Collision *1 When LAN Port
Link Loss Forwarding *1
Speed & Duplex *1

TCN-RX LEV

TCN-RX LEV-15min
TCN-RX LEV-1day

3-10

ROI-S05749 SYSTEM SETUP

Event List SONET

15min 1 day

TCN-OFS-15min Total
TCN-UAS-15min Total
TCN-ES-15min Total
TCN-SES-15min Total
TCN-BBE-15min Total
TCN-SEP-15min Total
TCN-OFS-15min(MUX)
TCN-UAS-15min(MUX)
TCN-ES-15min(MUX)
TCN-SES-15min(MUX)
TCN-BBE-15min(MUX)
TCN-SEP-15min(MUX)
TCN-OFS-15min(MUX)(P)
TCN-UAS-15min(MUX)(P)
TCN-ES-15min(MUX)(P) only APS configuration
TCN-SES-15min(MUX)(P)
TCN-BBE-15min(MUX)(P)
TCN-SEP-15min(MUX)(P)
TCN-OFS-1day Total
TCN-UAS-1day Total
TCN-ES-1day Total
TCN-SES-1day Total
TCN-BBE-1day Total
TCN-SEP-1day Total
TCN-OFS-1day(MUX)
TCN-UAS-1day(MUX)
TCN-ES-1day(MUX)
TCN-SES-1day(MUX)
TCN-BBE-1day(MUX)
TCN-SEP-1day(MUX)
TCN-OFS-1day(MUX)(P)
TCN-UAS-1day(MUX)(P)
TCN-ES-1day(MUX)(P)
TCN-SES-1day(MUX)(P) only APS configuration
TCN-BBE-1day(MUX)(P)
TCN-SEP-1day(MUX)(P)

3-11

SYSTEM SETUP ROI-S05749

Event List SONET

PMON(History)

RX Level

RX Level(15min)
RX Level(1day)

DMR (W) (1day)

Status
OFS
SEP
BBE
ES
SES
UAS

DMR (W) (15min)

Status
OFS
SEP
BBE
ES
SES
UAS

MUX (W) (day)

Status
OFS
SEP
BBE
ES
SES
UAS

MUX (W) (15min)

Status
OFS
SEP
BBE
ES
SES

RMON(Line)(15min) only for LAN

Status
RX UNICAST
RX BROADCAST
RX MULTICAST
RX PAUSE
RX CEC ERR
RX ALIGNMENT ERR
RX SYMBOL ERR
RX UNDERSIZE
RX FRAGMENTS
RX Pkts 64
RX Pkts 65 to 127
RX Pkts 128 to 255
RX Pkts 256 to 511

3-12

ROI-S05749 SYSTEM SETUP

Event List SONET

RX Pkts 512 to 1023
RX Pkts 1024 to 1536
TX JABBERS
TX UNICAST
TX BROADCAST
TX MULTICAST
TX PAUSE
TX COLLISION

Notes : *1 When the LAN/WS INTFC is provided, status of each LAN

PORT is displayed as follows.

Status of LAN PORT

Link Collision LLF Speed & Duplex

Sub PORT1 Link Normal Normal 100M-Full (MDIX)
Sub PORT1 Link Normal Normal 100M-Full (MDIX)

Notes:For the GbE INTFC, there are distinctions for the

following functions from the 10BASE-T/100BASE-Tx

1. RX Undersize: Unavailable.

2. RX Fragments: Unavailable.

3. RX Symbol Errors:
For SFP: Available
For RJ-45: Unavailable (un-counting, only "0" is
indicated.)

4. TX Multicast PKts (Including number of the TX pause
packets.)

5. RX Multicast PKts (Including number of the RX pause
packets.)

6. Countable packet size for the following items shown in
right side of the table and reading must be taken place
as follows. (The indication will not be taken placed.)

Indication Reading
15 RX Pkts 1024-1536 RX Pkts 1024-1518
16 RX Pkts 1537-MAX RX Pkts 1519-MAX

7. The RX Alignments Error is counted as an RX CRC
ERR.

3-13

SYSTEM SETUP ROI-S05749

3.4 Control

The control condition is based upon equipment setup and provisioning
setup, therefore control items vary depending on the those setup.

The control items that are displayed on the LCT PC are listed in the
following table. the control operation can be performed in Maintenance
“ON”.

3-14