H3C AR 18-3X Series
Routers (hereinafter referred to as the AR 18-3X series) are xDSL routers designed for small office home office (SOHO)
subscribers. They provide uplink interfaces of ADSL, G.SHDSL, and/or ISDN,
which can be connected through subscriber lines to the devices at the central
office end to provide broadband access to the Internet. Among these interfaces,
the ISDN interface is used for backup. When the ADSL or G.SHDSL link fails, it
can work as the uplink interface to ensure the ongoing communications. The
series provide four downlink layer 2 (L2) 10/100BASE-T
Ethernet interfaces. They can be isolated via VLAN configuration.
By far, the AR
18-3X series include these models: AR 18-33, AR 18-34,
AR 18-33E, and AR 18-34E.
The interfaces that
the AR 18-3X series provide are compliant with the
international standards and can work with the products of other vendors at
every layer. The existing investment of users can thus be protected to the
maximum.
1.2 Hardware Features of the AR
18-33/18-33E
I. Appearance
|
1) Ethernet LED LAN3
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2) Ethernet LED LAN2
|
|
3) Ethernet LED LAN1
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4) Ethernet LED LAN0
|
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5) SHDSL activity LED (DSL ACT)
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6) SHDSL link LED (DSL LNK)
|
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7) System LED (SYS)
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8) Power LED (PWR)
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Figure 1-1 Front view of the AR 18-33/18-33E
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1) Power switch
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2) Power socket
|
|
3) Console port (CONSOLE)
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4) Ethernet interface 0 (LAN0)
|
|
5) Ethernet interface 1 (LAN1)
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6) Ethernet interface 2 (LAN2)
|
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7) Ethernet interface 3 (LAN3)
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8) Grounding screw
|
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9) G.SHDSL interface
|
|
Figure 1-2 Rear view of the AR 18-33/18-33E
II. System specifications
Table 1-1 System
specifications of the AR 18-33/18-33E
|
Item
|
AR 18-33/18-33E
|
|
Interface
|
1 console port
1 G.SHDSL interface (2-wire for AR 18-33,
4-wire for AR 18-33E)
4 x 10/100 Mbps Ethernet interfaces
|
|
Processor
|
MPC859
|
|
SDRAM
|
64 MB
|
|
Flash
|
8 MB
|
|
Max. power
|
10 W
|
|
Power
supply (external)
|
Input
|
Rated
voltage: 100 to 240 V a.c.; 50 to 60 Hz
Current:
0.5 to 1 A
|
|
Output
|
Voltage: 12 V d.c.
Current: 1.25 A
|
|
Dimensions
(W x H x D)
|
300 x 180 x 45 mm (11.81 x 7.09 x 1.77
in.)
(the maximum measurements, including the
bulge)
|
|
Weight
|
<1 kg (2.20 lb)
|
|
Operating temperature
|
0 to 40 C (32 to 104 F)
|
|
Relative humidity (non-condensing)
|
5 to 90%
|
III. LEDs
You can gather
information about the status of the AR 18-33/18-33E and its interfaces by
reading the eight LEDs on its cover, as shown in Table
1-2.
Table 1-2 LEDs on the cover of the AR 18-33/18-33E
|
LED
|
Description
|
|
LAN0/LAN1/LAN2/LAN3
|
OFF means no link is present.
ON means a link is present.
Blinking means data is being sent or/and
received on the interface.
|
|
DSL ACT
|
OFF means no data is being sent or
received on the interface.
Blinking means data is being sent or/and
received on the interface.
|
|
DSL LNK
|
OFF means the G. SHDSL loop is down.
ON means the G.SHDSL loop is up.
Blinking means the connected two parties
are training parameters.
|
|
SYS
|
Blinking means the system is operating
normally.
Steady ON or OFF means the system is
improperly operating.
|
|
PWR
|
OFF means no power is being supplied.
ON means power is being supplied.
|
IV. Interface attributes
The AR 18-33/18-33E
provides the console port, 10/100 Mbps Ethernet interface, and G. SHDSL
interface.
The following table
describes only the attributes of the G.SHDSL interface. For the attributes of
other interfaces, see the interface attributes of the models described in the preceding
sections.
Table 1-3 Attributes
of the G.SHDSL interface
|
Attribute
|
Description
|
|
Connector
|
RJ11
|
|
Interface rate
|
In single pair mode, supports independent
receiving and transmission at a symmetric rate in the range 192 kbps to 2320
kbps, changing at 8 kbps. (AR 18-33)
In dual pair mode, supports independent
receiving and transmission at a symmetric rate in the range 384 kbps to 4624
kbps, changing at 16 kbps. (AR18-33E)
|
|
Interface standard
|
ITU-T G991.2
ITU-T G994.1 handshaking
|
|
Service
|
G.SHDSL access over common telephone
loops
|
I. Appearance
|
1) Ethernet LED LAN3
|
2) Ethernet LED LAN2
|
|
3) Ethernet LED LAN1
|
4) Ethernet LED LAN0
|
|
5) SHDSL activity LED (DSL ACT)
|
6) SHDSL link LED (DSL LNK)
|
|
7) ISDN B2 channel activity LED (ISDN B2)
|
|
8) ISDN B1 channel activity LED (ISDN B1)
|
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9) ISDN link LED (ISDN ACT)
|
10) System LED (SYS)
|
|
11) Power LED (PWR)
|
|
Figure 1-3 Front view of the AR 18-34/18-34E
|
1) Power switch
|
2) Power socket
|
|
3) Console port (CONSOLE)
|
4) Ethernet interface 0 (LAN0)
|
|
5) Ethernet interface 1 (LAN1)
|
6) Ethernet interface 2 (LAN2)
|
|
7) Ethernet interface 3 (LAN3)
|
8) Grounding screw
|
|
9) ISDN BRI interface
|
10) G.SHDSL interface
|
Figure 1-4 Rear view of the AR 18-34/18-34E
II. System specifications
Table 1-4 System
specifications of the AR 18-34/18-34E
|
Item
|
AR 18-34/18-34E
|
|
Interface
|
1 console port
1 G.SHDSL interface (2-wire for AR 18-34;
4-wire for AR 18-34E)
1 ISDN BRI S/T
4 x 10/100 Mbps Ethernet interfaces
|
|
Processor
|
MPC859
|
|
SDRAM
|
64 MB
|
|
Flash
|
8 MB
|
|
Max. power
|
10 W
|
|
Power supply (external)
|
Input
|
Rated voltage: 100 to 240 V a.c.; 50 to 60 Hz
Current: 0.5 to 1 A
|
|
Output
|
Voltage: 12 V d.c.
Current: 1.25 A
|
|
Dimensions
(W x H x D)
|
300 x 180 x 45 mm (11.81 x 7.09 x
1.77 in.)(the maximum measurements, including the bulge)
|
|
Weight
|
<1 kg (2.20 lb)
|
|
Operating temperature
|
0 to 40 C (32 to 104 F)
|
|
Relative humidity (non-condensing)
|
5 to 90%
|
III. LEDs
You can gather
information about the status of the AR 18-34/18-34E and its interfaces by
reading the 11 LEDs on its cover, as shown in Table
1-5.
Table 1-5 LEDs on the cover of the AR 18-34/18-34E
|
LED
|
Description
|
|
LAN0/LAN1/LAN2/LAN3
|
OFF means no link is present.
ON means a link is present.
Blinking means data is being sent or/and
received on the interface.
|
|
DSL ACT
|
OFF means no data is being sent or
received on the interface.
Blinking means data is being sent or/and
received on the interface.
|
|
DSL LNK
|
OFF means the ADSL loop is down.
ON means the ADSL loop is up.
Blinking means the connected two parties
are training parameters.
|
|
ISDN B1/ ISDN B2
|
OFF means no data is being transmitted or
received on the channel (B1 or B2).
Blinking means data is being transmitted
or/and received on the channel (B1 or B2).
|
|
ISDN ACT
|
OFF means the ISDN loop is down.
ON means the ISDN loop is up.
|
|
SYS
|
Blinking means the system is operating
normally.
Steady ON or OFF means the system is
improperly operating.
|
|
PWR
|
OFF means no power is being supplied.
ON means power is being supplied.
|
IV. Interface attributes
The AR 18-34/18-34E
provides the console port, Ethernet interface, G. SHDSL interface, and ISDN BRI
interface. For their attributes, see the interface attributes of the models
described in the preceding sections
