AR1220-DC
Version Mapping
Table 4-497 lists the mapping between the AR1220-DC router and software versions.
Appearance and Structure
Figure 4-143 shows the appearance of the AR1220-DC router.
1 |
Two USB interfaces (host) |
2 |
RST button NOTE:
|
3 |
Security lock |
4 |
ESD jack NOTE:
When maintaining the router, wear an ESD wrist strap and insert the other end of the ESD wrist strap in the ESD jack. |
5 |
Two SIC slots |
6 |
Product model silkscreen |
7 |
Ground point NOTE:
Reliably ground the router by connecting a ground cable to the ground point to protect the router against lightning and interference. |
8 |
CON/AUX interface NOTE:
The AR1220-DC does not support AUX login. |
9 |
Mini USB interface NOTE:
The Mini USB interface and console interface cannot be used at the same time. |
10 |
WAN interfaces: two GE electrical interfaces NOTE:
GE0 is a management interface and is used to upgrade the router. |
11 |
LAN interfaces: eight FE electrical interfaces NOTE:
V200R007C00 and later versions: all FE LAN interfaces can be configured as WAN interfaces. |
12 |
DC power terminals NOTE:
Use DC power cables to connect the router to an external power source. |
Slot Distribution
- Two SIC slots can be combined into one WSIC slot by removing the guide rail between them.
- After two slots are combined into one, the new slot ID is the larger one between the two original slot IDs.
Figure 4-144 shows the slot distribution of the AR1220-DC router.
- Slot 1 and slot 2 are combined into new slot 2.
Indicator Description
Figure 4-145 shows the indicators on the AR1220-DC router.
Number |
Indicator |
Color |
Description |
|---|---|---|---|
1 |
ACT (USB) |
Red and green |
Steady green: The system has been upgraded or configured using a USB flash drive. |
Blinking green: The system is being upgraded or configured using a USB flash drive. |
|||
Steady red: The system fails to be upgraded or configured using a USB flash drive. |
|||
Off: No USB flash drive is connected, the USB interface has failed, or the indicator has failed. |
|||
2 |
SYS |
Red and green |
Slow blinking: The system is running properly. Fast blinking: The system is being powered on or restarting. |
Steady on: A fault that affects services has occurred and cannot be rectified automatically. The fault needs to be rectified manually. |
|||
Off: The system software is not running or is resetting. |
|||
3 |
WAN |
Green |
Steady on: At least one GE interface is connected and active. |
Off: The two GE interfaces are both disconnected or inactive. |
|||
4 |
EN (CON/AUX interface) NOTE:
|
Green |
Steady on: The CON/AUX interface is enabled. |
Off: The CON/AUX interface is disabled. |
|||
5 |
EN (Mini USB interface) |
Green |
Steady on: The Mini USB interface is enabled. |
Off: The Mini USB interface is disabled. |
|||
6 |
GE electrical interface indicators |
Green |
Steady on: A link has been established. |
Off: No link is established. |
|||
Yellow |
Blinking: Data is being transmitted or received. |
||
Off: No data is being transmitted or received. |
|||
7 |
FE electrical interface indicators |
Green |
Steady on: A link has been established. |
Off: No link is established. |
|||
Yellow |
Blinking: Data is being transmitted or received. |
||
Off: No data is being transmitted or received. |
Interface Description
CON/AUX Interface
Mini USB Interface
FE Electrical Interface
Attribute |
Description |
|---|---|
Connector type |
RJ45 |
Interface attribute |
MDI/MDIX NOTE:
|
Standards compliance |
|
Frame format |
Ethernet_II, Ethernet_SAP, Ethernet_SNAP |
Network protocol |
IP |
Cable type |
GE Electrical Interface
Attribute |
Description |
|---|---|
Connector type |
RJ45 |
Interface attribute |
MDI/MDIX NOTE:
|
Standards compliance |
IEEE802.3, IEEE802.3u, IEEE802.3ab |
Frame format |
Ethernet_II, Ethernet_SAP, Ethernet_SNAP |
Network protocol |
IP |
Cable type |
USB Interface (Host)
Heat Dissipation
The AR1220-DC router has built-in fans to cool the system. The fans are not pluggable.
Seen from the front panel, the airflow is left to right, as shown in Figure 4-146. Cold air flows into the router from the left side and is exhausted from the right side, taking away heat generated by the router.
Technical Specifications
Table 4-503 lists the technical specifications of the AR1220-DC router.
Item |
Specification |
|---|---|
System parameters |
|
Processor |
Dual-core, 500 MHz |
Memory |
512 MB |
Flash |
256 MB |
Micro SD card (default: sd1) |
None |
Hard disk |
Not supported |
Dimensions and weight |
|
Dimensions (H x W x D) |
|
Weight |
2.9 kg (6.39 lb) |
Power specifications |
|
Rated input voltage (DC) |
-48 V DC to -60 V DC |
Maximum input voltage (DC) |
-38.4 V DC to -72 V DC |
Maximum input current |
3 A |
Maximum output power |
54 W |
RPS power supply |
Not supported |
PoE power supply |
Not supported |
Power consumption (empty chassis) |
|
Typical power consumption |
27 W |
Maximum power consumption |
32 W |
Heat dissipation |
|
Fans |
Built-in fans, not pluggable |
Airflow (facing the front panel) |
Left to right |
Interface density |
|
Management interfaces |
1 (RJ45) |
CON/AUX interfaces |
1 (RJ45) |
USB 2.0 interfaces |
2 |
Service interfaces (standard configuration) |
WAN interfaces: two GE electrical interfaces LAN interfaces: eight FE electrical interfaces |
Extended slots |
2xSIC |
Environment parameters |
|
Operating temperature |
0°C to 45°C (32°F to 113°F) NOTE:
When the altitude is between 1800 m and 5000 m, the highest operating temperature reduces by 1°C every time the altitude increases by 220 m. |
Storage temperature |
-40°C to +70°C (-40°F to +158°F) |
Operating relative humidity |
5% to 95%, noncondensing |
Operating altitude |
< 5000 m (16404.2 ft.) |
Part number |
02354271 |