Allied Telesis, Inc. reserves the right to change specifications and other
information in this document without prior written notice. The information
provided herein is subject to change without notice. In no event shall Allied
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Contents
Devices Covered By This Document ................................................................... 4
Compatible Switches and Routers ..................................................................... 4
AT-AR048 Support ..................................................................................... 4
Obtaining Documentation and Resources ........................................................ 23
4Network Service Module
Devices Covered By This Document
This Hardware Reference includes information on the following Network
Service Modules (NSMs):
■AT-AR040, four Port Interface Card (PIC) expansion bays
■AT-AR041, eight ISDN Basic Rate S/T interfaces
■AT-AR042, four ISDN Basic Rate S/T interfaces
■AT-AR048, one unchannelised DS3 interface
You can download the complete document set for NSMs, and for your switch
or router, from www.alliedtelesis.com/support/software. For more
information about the document set and other resources, see “Obtaining
Documentation and Resources” on page 23.
Compatible Switches and Routers
The following table shows which NSMs are appropriate for different models of
switch and router.
Table 1: Compatible switches and routers for Network Service Modules (NSMs)
Model(s)AR040AR041AR042AR048
Rapier 8/8 (MT & SC) switch!!!
Rapier 16F-FX (MT-RJ & SC) switch!!!
Rapier 16Fi-FX (MT-RJ & SC) switch!!!
Rapier 24 switch!!!
Rapier 24i switch!!!!
Rapier 48w switch!!
AR816F-FX (MT-RJ & SC)
modular switching router
AR824 modular switching router!!!
AR740 router!!!
AR745 router!!!
!!!
AT-AR048 Support
Maximum DS3 packet forwarding rates are achieved only when the AT-AR048
is installed in a Rapier 48w switch, or a Rapier 24i switch whose serial number
ends with the letter N or higher. If maximum DS3 performance is not required,
you can install the AT-AR048 in any Rapier 24i whose serial number ends in J
or later. You can find the serial number on the underside of the switch (Figure 1
on page 5).
C613-03022-00 REV K
Hardware Reference5
Figure 1: Serial number label on the underside of a Rapier 24i
Model : AT-RP241-10
Part Number: 990-11934-10
Product Serial Number: S03K225N
Quantity With Unit of
Measure:
1 EA7 67035 14875
5
Made in Singapore
N or higher for maximum DS3
performance
J, K, L, or M for less demanding
DS3 applications
C613-03022-00 REV K
6Network Service Module
Hardware Overview
This section provides an overview of the hardware features of NSMs. NSMs are
expansion options for switch and router models with an NSM bay. NSMs slot
into a base-unit switch or router and either directly provide additional WAN
interfaces, or provide expansion slots for Port Interface Cards (PICs).
Hardware descriptions for your switch or router, Uplink Modules, and PICs
can be found in their respective Hardware References. These documents can be
downloaded from www.alliedtelesis.com/support/software.
Safety and conformance information can be found in the Installation and Safety
Guide or Safety and Statutory Information booklet for your switch or router,
which can be downloaded from www.alliedtelesis.com/support/software.
Common Features
The following hardware features are common to all NSM models.
Environmental
conditions
Regulatory
Standards
■Operating temperature range: 0 ºC to 40 ºC (32 ºF to 104 ºF)
■Storage temperature range: -25 ºC to 70 ºC (-13 ºF to 158 ºF)
■Relative humidity range: 5 to 95% non-condensing
AT-AR0 40
■Listing: UL, cUL, TUV
■Safety: UL 60950-1, CAN/CSA-C22.2 No. 60950-1-03, EN60950-1,
AS/NZS60950.1
■EMC: Radiated: EN55022 class A, FCC class A, VCCI class A,
AS/NZS CISPR22 class A
■Immunity: EN55024
AT-AR041 and AT-AR042
■Listing: TUV
■Safety: EN60950-1, AS/NZS60950.1
■EMC: Radiated: EN55022 class A, AS/NZS CISPR22 class A
■Immunity: EN55024
■Network interface: TBR3, ACA TS031, iDA ISDN 1
AT-AR0 48
■Listing UL, cUL
■Safety: UL60950-1, CAN/CSA-C22.2 No. 60950-1-03
■EMC: Radiated: FCC Part 15 class A, IC-03 class A
The AT-AR040 provides four Port Interface Card (PIC) expansion bays for
installing PICs. The front panel of the AT-AR040 NSM is shown in Figure 2.
The AT-AR040 NSM does not have LEDs.
Figure 2: AT-AR040 NSM with three PICs installed
Tx
Rx
AT- AR 023 SYN PIC
Blank face-plate
SYN
024 ASYN4 PIC
AT- AR
30
ASYN
D Data
B Data
PRI E1/T1
AT- AR 020 PRI E1/T1 PIC
Active
N
T
nsm4pic3
Supported Port Interface Cards (PICs)
The following PICs can be installed in an AT-AR040 NSM:
■AT-AR020 PRI E1/T1, a single ISDN Primary Rate E1/T1 interface
■AT-AR021(S) BRI-S/T, a single ISDN Basic Rate S/T interface
■AT-AR021(U) BRI-U, a single ISDN Basic Rate U interface
■AT-AR023 SYN, a single 2Mbps synchronous interface supporting RS-232,
X.21, and V.35 in DTE and DCE modes
■AT-AR024 ASYN4, four asynchronous ports
■AT-AR027 VoIP-FXS, two Foreign Exchange Voice over IP ports
For more information about installing PICs, see the Port Interface Card
Installation and Safety Guide, which is included with every PIC or can be
downloaded from www.alliedtelesis.com/support/software.
For more information about the hardware features of PICs, constructing data
cables, and verifying installation, see the Port Interface Card Hardware Reference,
which can be downloaded from www.alliedtelesis.com/support/software.
Guidelines and limits for installing PICs
Observe the following guidelines and limits when installing PICs:
■Use the PIC bays on the switch or router first, before installing PICs into an
AT-AR040 NSM.
■Fill any PIC bays in the base router starting at bay 0.
■Fill the PIC bays in the AT-AR040 NSM starting at bay 0.
■You can install a maximum of two AT-AR020 PRI E1/T1 PICs into an
AT-AR040 NSM, and maximum of four total in a switch or router.
■If two AT-AR020 PICs are installed in an AT-AR040 NSM, PIC one must be
installed in the lower row (bay 0 or 1) and the other PIC must be installed
in the upper row (bay 2 or 3).
C613-03022-00 REV K
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