Juniper Networks E-Series manual 12-39, Speed Hz Feet

I/O Module Specifications E-Series Routers

12-39

Cable Lengths for X.21/V.35 Cables

Serial signals can travel a limited distance without significant degradation. Slower serial signals can travel farther without degradation than faster serial signals. Table 12-4shows the maximum cable lengths you can use to prevent signal degradation at various transmission speeds.

Table 12-4Maximum cable lengths for X.21/V.35 connections

Transmission	Cable Length	Cable Length
Speed (Hz)	(Feet)	(m)
2400	4,100	1,250
4800	2,050	625
9600	1,025	312
19200	513	156
38400	256	78
56000	102	31
2048000	25	8