Specifications

System Specifications 3-31
Catalyst 1900(r)
Catalyst 1900(r)
This section contains the physical specifications and external connection requirements for the
Catalyst 1900 Ethernet desktop switch.
Physical Specifications
Table 3-22 lists the physical specifications for the Catalyst 1900 switch.
Table 3-22 Catalyst 1900 Physical Specifications
External Connections
This section contains the external connection requirements for the Catalyst 1900.
• A 9-pin, male management port that functions as a DTE port. This port enables attachment of a
console terminal or terminal emulator that is used to customize the switch’s configuration,
monitor switch activity and status, and test the switch. Console access can be either local, by
direct attachment to the EIA/TIA-232 port, or remote, through a modem connection. The
EIA/TIA-232 port automatically detects the baud rate of the terminal to which it is attached.
• 25 switched Ethernet ports: 24 10BaseT and one AUI
The 10BaseT ports use RJ-45 connectors to connect to single workstations, 10BaseT hubs, or any
10BaseT compatible device. The attached devices use standard 10BaseT adapters and wiring.
Port 25, located on the back panel, supports an alternative AUI connection using a DB-15
connection for attachment to a thick coaxial, thin coaxial, or a fiber optic media transceiver.
• Two fixed 100BaseT ports using RJ-45 connections
Each 100BaseT port is internally switched to the other Catalyst 1900 ports. One or both of these
can be set to collision-free full-duplex mode for full-duplex operation.
• 10 Mbps ports:
— RJ-45 Connectors
— Two-pair Category 3, 4, or 5 UTP cabling
— DB15 connector on AUI port
Characteristic Description
Operating temperature 32–104˚F (0–40˚C)
Operating humidity 10% to 90%
Operating altitude Up to 10,000 feet
Power consumption 65 watts (W)
Input voltage 90 to 250 V @ 50 to 60 Hz
Reliability 50,000 hours MTBF
Weight 7 lb. (3.2 kg)
Dimensions (H x W x D) 1.73 x 17.5 x 8.25 in. (4.39 x 44.45 x 2 cm)