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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)
Summary of Contents for CPA2501
Page 4: ...xviii Router Installation and Configuration Guide Conventions ...
Page 14: ...1 10 Router Installation and Configuration Guide Ordering Documentation ...
Page 32: ...2 18 Router Installation and Configuration Guide Where to Go Next ...
Page 78: ...4 24 Router Installation and Configuration Guide Getting More Information ...
Page 84: ...A 6 Router Installation and Configuration Guide Reading the LEDs ...
Page 122: ...C 24 Router Installation and Configuration Guide ISDN BRI Port and Cable Pinouts ...
Page 138: ...2 16 Cisco 2500 Series Multiport Serial Router User Guide Inspecting the System ...