|
|
This appendix contains the following sections:
Table D-1 lists the system specifications for the Cisco Micro Hubs.
| Description | Specification |
|---|---|
Ports
|
Connector Type
|
|
Access method | CSMA/CD, 10 Mbps |
| Media supported |
|
|
Indicator panel | LEDs:
|
|
Configuration options |
|
|
Processor | 80C31 (Micro Hub 1502)
386EX (Micro Hub 1503) |
| Dimensions (H x W x D) | 3.1 x 11.2 x 8.7 in. (7.85 x 28.4 x 22.1 cm) Height includes the stacking curves on top of the hub |
| Weight | 1.3 lb (0.6 kg) |
| Power (external) | 13.5 VDC (+/- 5%), 2A |
| Nonoperating temperature | -40 to 149°F (-20° to 65°C) |
| Operating temperature | 32 to 104°F (0° to 40°C) |
| Operating humidity | 10 to 85%, noncondensing |
| Standards conformance | IEEE 802.3 10BaseT |
Hub Stack
|
|
This section describes the cables and cable wiring that is supported by the Cisco Micro Hubs.
You must supply the Ethernet cable for connecting workstations or other 10BaseT devices, such as compatible hubs or switches, to the Cisco Micro Hub.
The Ethernet cable should meet the following specifications:
If you are connecting another 10BaseT hub or switch, you can also run straight-through 10BaseT cabling from a a port labeled 1X through 8X on this hub to an MDI port on the other device.
However, if you are connecting a Cisco Micro Hub workstation port (labeled 1X through 8X) to another hub's MDI-X port, you must use an Ethernet rollover cable. You can identify a rollover cable by comparing the modular ends of the cable. Holding the cable in your hand, side-by-side, with the tab at the back, the wire connected to the pin on the outside of the left connector (pin 1) is the same color as the pin on the outside of the right connector (pin 8). On Cisco cables, pin 1 is white on one connector, and pin 8 is white on the other connector.
| 8 Pin1 | Description |
|---|---|
| 1 | TX+ |
| 2 | TX- |
| 3 | RX+ |
| 6 | RX- |
Table D-3 describes the wiring for a straight-through 10BaseT cable, which is used to connect the hub to any devices that use a standard Ethernet LAN interface (for example, to a PC or server).
| RJ-45 Pin | Signal | Direction | RJ-45 Pin |
|---|---|---|---|
| 1 | TX+ | --> | 1 |
| 2 | TX- | --> | 2 |
| 3 | RX+ | <-- | 3 |
| 4 | - | - | 4 |
| 5 | - | - | 5 |
| 6 | RX- | <-- | 6 |
| 7 | - | - | 7 |
| 8 | - | - | 8 |
A console cable kit is provided with your hub to connect a console (an ASCII terminal or PC running terminal emulation software) to the hub's CONSOLE port.
The console cable kit contains:
Table D-4 describes the wiring for the CONSOLE port, the console cable, and both adapters.
| CONSOLE Port (DTE) | RJ-45-to-RJ-45 Console Cable | ||||
|---|---|---|---|---|---|
| Signal | RJ-45 Pin | RJ-45 Pin | DB-9 Pin | DB-25 Pin | Signal |
| - | 1 | 8 | 7 | 4 | - |
| DTR | 2 | 7 | 4 | 20 | DSR |
| TxD | 3 | 6 | 3 | 2 | RxD |
| GND | 4 | 5 | 5 | 7 | GND |
| GND | 5 | 4 | 5 | 7 | GND |
| RxD | 6 | 3 | 2 | 3 | TxD |
| DSR | 7 | 2 | 6 | 6 | DTR |
| - | 8 | 1 | 8 | 5 | - |
|
|