Network Service Module
Quick Install Guide
AT-AR040
AT-AR041
AT-AR042
AT-AR048
Network Service Module Quick Install Guide
Document Number C613-04019-01 REV J.
Copyright © 1999-2006 Allied Telesis, Inc. All rights reserved. No part of this
publication may be reproduced without prior written permission from Allied Telesis,
Inc.
Allied Telesis, Inc. reserves the right to make changes in specifications and other
information contained in this document without prior written notice. The information
provided herein is subject to change without notice. In no event shall Allied Telesis, Inc.
be liable for any incidental, special, indirect, or consequential damages whatsoever,
including but not limited to lost profits, arising out of or related to this manual or the
information contained herein, even if Allied Telesis, Inc. has been advised of, known, or
should have known, the possibility of such damages.
All company names, logos, and product designs that are trademarks or registered
trademarks are the property of their respective owners.
Quick Install Guide 3
Models Covered By This Guide
This Quick Install Guide includes information on the following models:
■ AT-AR 040
■ AT-AR 041
■ AT-AR 042
■ AT-AR048
Quick Install Guide updates can be found at www.alliedtelesis.com/support/.
Package Contents
The following items are included with each NSM. Contact your sales
representative if any items are damaged or missing.
■ One NSM
■ One NSM Quick Install Guide
■ One warranty card
Compatible Base Units
Table 1 lists NSMs and NSM-ready products. Ticks (!) indicate which models
are compatible.
Table 1: Compatibility of NSM models.
Family Model(s) AR040 AR041 & AR042 AR048
Rapier Rapier 8/8 (MT & SC) !!
Rapier 16F-FX (MT-RJ & SC) !!
Rapier 16Fi-FX (MT-RJ & SC) !!
Rapier 24 !!
Rapier i Rapier 24i !!!
AR800 Modular Switching Router AR816F-FX (MT-RJ & SC) !!
AR824 !!
AR Routers AR740 !!
AR745 !!
1
C613-04019-01 REV J
1. Maximum DS3 packet forwarding rates are achieved only when the AT-AR048 is installed in a Rapier
24i whose serial number ends with the letter N or higher. If maximum DS3 performance is not
required, the AT-AR048 can be installed in any Rapier 24i whose serial number ends in J, K, L, or M.
The serial number can be found on the underside of the switch (see Figure 1 on page 4).
4 Network Service Module
Figure 1: Serial number label, as found on the underside of switches.
Model : AT-RP241-10
Part Number: 990-11934-10
Product Serial Number: S03K225N
Quantity With Unit of
Measure:
1 EA 7 67035 14875
5
Made in Singapore
N or higher for maximum DS3
performance
J, K, L, or M for less demanding
DS3 applications
Installing a Network Service Module
There are two methods for installing and removing NSMs: the Standard
Installation Method and the Hot Swap Installation Method. The software
release running on your switch or router determines which of these two
methods should be used.
If your switch or router is running Software Version 2.2.3 or earlier, follow the
standard method. If your switch or router is running Software Version 2.3.1 or
later, you can use the hot swap method.
To find out which software release your switch or router is running, use the
command:
show release
Standard Installation Method (for Software Version 2.2.3 or earlier):
Follow these steps to install or remove an NSM if the software release does not
support hot swapping.
1. Read the safety information
See the Safety and Statutory Information booklet for your switch or router. A
copy of this booklet can be found on the CD-ROM that came with your
switch or router, or at www.alliedtelesis.com/support/.
2. If connected, disconnect the switch or router from its redundant power supply
3. Disconnect the switch or router from the main power supply
If using the Standard Installation Method, be sure to disconnect the main
power supply and the redundant power supply before installing an NSM.
Installing an NSM with this method when the switch or router is powered ON
can damage the NSM.
C613-04019-01 REV J
Quick Install Guide 5
4. Remove the switch or router NSM-bay face-plate or existing NSM
If the switch or router does not have an NSM installed, remove the blank
NSM-bay face-plate by loosening the two M4 Phillips screws. See Figure 3
on page 5.
If an NSM is already installed, disconnect its network cables and TNV lines
before removing it from the switch or router.
Remove the NSM by unscrewing both thumbscrews at the same time. As
the thumbscrews are turned, they will push the NSM out of the bay.
If the NSM has extractor levers, moving them to the open position will
assist the removal process (Figure 2 on page 5).
Figure 2: NSM extractor levers.
When removing an NSM, take care to turn each thumbscrew by an equal
amount to ensure the NSM does not become misaligned. Forcing a jammed
thumbscrew may damage the NSM.
If a thumbscrew becomes tight, it must not be forced. Instead, screw it in or
out slightly to loosen it and then try again, taking care to unscrew both
thumbscrews at the same rate.
Keep the face-plate for future use. If you remove an NSM, replace the face-plate to
prevent dust and debris from entering the switch or router and to maintain proper
airflow.
Figure 3: The NSM bay on a Rapier Switch.
Open
Close
Swap
In Use
NSM 0
Hot Swap
RPS inlet
AC power inlet (AC models only)
C613-04019-01 REV J
NSM bay
Base unit LEDs
5. Prepare the NSM
In an antistatic environment, remove the NSM from its packing material.
Be sure to observe ESD precautions.
Do not attempt to install an NSM without observing correct antistatic
procedures. Failure to do so may damage the switch, router, or NSM. If you are
unsure what the correct procedures are, contact your authorised Allied Telesis
distributor or reseller.
6 Network Service Module
6. Slide the NSM into place
Slide the NSM into the NSM bay, making sure the ends of the thumbscrews
are aligned with the screw holes on the switch or router.
If the NSM has extractor levers, they should be in the closed position
(Figure 2 on page 5).
7. Secure the NSM
When the NSM has been firmly pushed into place, turn the NSM’s two
thumbscrews to engage their threads. Tighten both thumbscrews at the
same rate to pull the NSM into position.
The screws will tighten when the NSM panel is in its installed position. The
thumbscrews should be firm but not over-tight.
If one thumbscrew becomes tight before the other, loosen it slightly before
proceeding.
8. Installing PICs in the AT-AR040 NSM
If you have PICs to install, install them now by following the Port Interface
Card Quick Install Guide. If there are more PIC bays than PICs, use the bays
on the switch or router base unit first, then fill the NSM PIC bays starting
with bay 0.
9. Apply power to the switch or router by re-attaching the power cord
Check that the switch or router power LED lights green.
10. If you disconnected a redundant power supply, reconnect it
11. Verify the installation
Check the In Use LED. The In Use LED (on the switch or router rear panel)
lights to indicate the NSM is installed, is receiving power, and is
operational.
Use the show system command to verify the switch or router has
recognised the NSM. If there is no NSM entry in the output, recognition
has failed.
If the In Use LED fails to light or recognition fails, repeat the installation
process, paying particular attention to steps 6 and 7.
If the reinstallation fails, see the Network Service Module Hardware Reference,
which has further troubleshooting information.
Hot Swap Installation Method (for Software Version 2.3.1 or later):
WARNING: Failure to follow this procedure when hot swapping an NSM will
cause the switch or router to crash, and may damage the switch or router and
files stored in Flash.
The AT-AR040 NSM can be hot swapped with PICs installed in its PIC bays. There is
no need to remove the PICs before hot swapping. See the NSM Hardware Reference for
information on the operational characteristics of hot swapped interfaces.
C613-04019-01 REV J
Quick Install Guide 7
Follow these steps to hot swap an NSM.
1. Prepare the NSM bay for hot swap
If the In Use LED (next to the NSM bay) is lit, use a pencil tip or similar
object to press the recessed Hot Swap button. The In Use LED should go
out and the Swap LED should light.
If the In Use LED remains lit or if neither the In Use or Swap LED are lit,
the software release does not support hot swapping, and the Standard
Installation Method must be used.
Do not attempt to hot swap while the contents of Flash are being modified; for
instance, during Flash compaction or when files are being loaded onto the
switch or router. If the switch or router crashes while Flash is being modified,
configuration files, software release files, feature licences and other files may be
damaged.
2. Prepare the NSM
In an antistatic environment, remove the NSM from its packing material.
Be sure to observe ESD precautions.
Do not attempt to install an NSM without observing correct antistatic
procedures. Failure to do so may damage the switch, router, or NSM. If you are
unsure what the correct procedures are, contact your authorised Allied Telesis
distributor or reseller.
3. Remove the switch or router NSM-bay face-plate or existing NSM
If the switch or router does not have an NSM installed, remove the blank
NSM-bay face-plate by loosening the two M4 Phillips screws. See Figure 3
on page 5.
If an NSM is already installed, disconnect its network cables and TNV lines
before removing it from the switch or router.
Remove the NSM by unscrewing both thumbscrews at the same time. As
the thumbscrews are turned, they will push the NSM out of the bay.
If the NSM has extractor levers, moving them to the open position will
assist the removal process (Figure 2 on page 5).
When removing an NSM, take care to turn each thumbscrew by an equal
amount to ensure the NSM does not become misaligned. Forcing a jammed
thumbscrew may damage the NSM.
If a thumbscrew becomes tight, it must not be forced. Instead, screw it in or
out slightly to loosen it and then try again, taking care to unscrew both
thumbscrews at the same rate.
C613-04019-01 REV J
Keep the face-plate for future use. If you remove an NSM, replace the face-plate to
prevent dust and debris from entering the switch or router and to maintain proper
airflow.
8 Network Service Module
4. Slide the NSM into place
Slide the NSM into the NSM bay, making sure the ends of the thumbscrews
are aligned with the screw holes on the switch or router.
If the NSM has extractor levers, they should be in the closed position
(Figure 2 on page 5).
5. Secure the NSM
When the NSM has been firmly pushed into place, turn the NSM’s two
thumbscrews to engage their threads. Tighten both thumbscrews at the
same rate to pull the NSM into position.
The screws will tighten when the NSM panel is in its installed position. The
thumbscrews should be firm but not over-tight.
If one thumbscrew becomes tight before the other, loosen it slightly before
proceeding.
6. Installing PICs in the AT-AR040 NSM
If you have PICs to install, install them now by following the Port Interface
Card Quick Install Guide. If there are more PIC bays than PICs, use the bays
on the switch or router base unit first, then fill the NSM PIC bays starting
with bay 0.
7. Return the NSM bay to use
Press the recessed Hot Swap button. The Swap LED will go out and the
In Use LED will light.
If the In Use LED lights only briefly and the Swap LED then lights
continuously, the NSM is of a type the software release does not support.
8. Verify the installation
Use the show system command to verify the switch or router has
recognised the NSM. If there is no NSM entry in the output, recognition
has failed.
If the In Use LED fails to light or recognition fails, repeat the installation
process, paying particular attention to steps 4 and 5.
If the reinstallation fails, use the Standard Installation Method or see the
Network Service Module Hardware Reference, which has further
troubleshooting information.
LEDs and What They Mean
AT-AR040
The AT-AR040 NSM unit does not have independent LEDs. See Table 4 on page
10 for information about related LEDs found on the base-unit switch or router.
C613-04019-01 REV J
Quick Install Guide 9
AT-AR041 and AT-AR042.
Table 2: AT-AR041 and AT-AR042 LEDs.
LED State Function
Active Green Lit when the BRI has successfully completed the
exchange of INFO 1 and INFO 2 signals, and
INFO 3 and INFO 4 signals are present on the
link. This means the ISDN interface is correctly
connected to a working NT device.
Off There is no connection to the ISDN, or the ISDN
has deactivated the connection.
Data Amber For on-demand ISDN, lit when there is a call up
over the respective B channel.
For permanent circuits, lit when HDLC packets
are being exchanged between the switch or
router and another TE end system device
(normally another switch or router) over the
respective B (data) channel.
Flashing Amber For on-demand ISDN, flashing when data is
being exchanged.
Off For on-demand ISDN, Off when there is no
active connection or when continuous data
exchange is occurring.
For permanent ISDN circuits, Off when no data
exchange is occurring.
AT-AR048
The AT-AR048 NSM has the following LEDs on its face-plate.
Table 3: AT-AR048 LEDs.
LED State Function
Active Green Lit when the Line Interface Unit (LIU) is receiving
a signal.
Loop Green Lit when any loopback is active.
LOS Amber Lit when the received signal is lost. This usually
indicates a network disruption, such as a cable
being disconnected or a device failure.
LOF Amber Lit when the DS3 framer cannot extract valid
frames from the received signal.
AIS Amber Lit when an Alarm Indication Signal is detected.
FERF Amber Lit when a Far End Receive Failure signal is
detected. This indicates the far end is receiving
an AIS, LOS, or LOF signal.
C613-04019-01 REV J
10 Network Service Module
Switch and Router LEDs related to NSMs
The following table may be helpful when diagnosing possible NSM faults.
Switches and routers with NSM bays have these LEDs built into their chassis.
Table 4: NSM LEDs (on switches or routers with NSM bays).
LED State Function
In use (Rear panel) Green An NSM is installed, is receiving power, and is
operational. The NSM and its PICs are not
ready for hot swap.
Off No NSM is installed or the NSM is not installed
correctly (the switch or router has not
recognised the NSM).
Swap (Rear panel) Green The NSM and its PICs are ready to be hot
swapped.
Off The Hot Swap button must be pressed before
the NSM or its PICs can be hot swapped or the
software release does not support hot
swapping
1
.
1. Hot swapping is supported by Software Version 2.3.1 or later.
PIC LEDs
PIC LED descriptions can be found in the Port Interface Card Hardware Reference,
which is included on the CD-ROM bundled with your switch or router or at
www.alliedtelesis.com/support/.
Where To Find More Information
Sources of further information.
For further information on NSMs:
■ See the Network Service Module Hardware Reference, which provides detailed
information on NSMs.
For information on base-units (switches and routers):
■ See the Hardware Reference or Software Reference for your switch or
router, which provides information on hardware and software features.
For information on PIC expansion options:
■ See the Port Interface Card Quick Install Guide, which outlines the procedure
for installing PICs; and the Port Interface Card Hardware Reference, which
provides detailed information on PICs.
These documents can be found on the CD-ROM bundled with your switch or
router or at www.alliedtelesis.com/support/.
C613-04019-01 REV J
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