Specifications

2-10 Cisco 2500 Series Multiport Serial Router User Guide
Cabling Considerations
The use of balanced drivers allows EIA/TIA-449 signals to travel greater distances than the
EIA/TIA-232 standard. Table 2-2 lists the standard relationship between baud rate and
maximum distance for EIA/TIA-449 signals. These limits are also valid for V.35 and X.21.
Table 2-2 EIA/TIA-449 Speed and Distance Limitations
Caution
The EIA/TIA-449 and V.35 interfaces support data rates up to 2.048 Mbps.
Exceeding this maximum could result in loss of data and is not recommended.
38400 50 15
57600 25 7.6
115200 12 3.7
Data Rate
(Baud)
Distance
(Feet)
Distance
(Meters)
2400 4,100 1,250
4800 2,050 625
9600 1,025 312
19200 513 156
38400 256 78
56000 102 31
T1 50 15
Data Rate
(Baud)
Distance
(Feet)
Distance
(Meters)