Communication Speeds

Issue:
Can the 594 or 494 controller support a T1 line.

Solution:

The 494 and 594 controllers have a universal serial interface.
The interface is a special high density 44 pin D type connector(which has 3 rows of pins).
 The interface can support speeds to a Maximum of 128 Kbps.
The following are the supported speeds
                           
 Line Speed                          1200
                                           2400
                                           3600   This group standard  RS232 type interface.
                                           4800
                                           7200
                                           9600
                                           14.4K
                                           19.2K


                                           38.4K
                                           48  K
                                           56  K    This group V.35 or X.21 type interface.
                                           64  K
                                           128 K  

Selecting the speed on the controller is only required for direct connect installations, a special direct connect cable should be located to complete the installation.
When controllers are connect to  modems or CSU/DSU's the clock rate is provided the DCE device which is the modem / CSU/DSU although the clock rate is provided by an exernal source the maximum supported speed the controller will accept is 128k.

When selecting speeds the appropriate communication cable should also be used.
For speeds of up to 19.2K the EIA 232 cabled is selected.
For speeds from 38.4k to 128k the Winchester cable is required.
Note:
        Some CSU/DSU units are equip with  25 pin D type connectors configured for V.35 support, the controller will not support V.35 "D type connector" if the CSU/DSU doesn't have the Winchester connector the adaptor from the D to Winchester has to be installed on the CSU/DSU before connecting to the Perle V.35 cable.
The same rules apply if the controllers is to be connected to a routers serial interface.


Article ID:
307
Published:
3/18/2003 5:11:24 PM
Last Modified:
3/18/2003 6:21:46 PM
Issue Type:
FAQ