HP 6000 Router manual Internal DIP Switch, Interface cables, Port Channelized T1/PRI FIC

4-port Channelized T1/PRI FIC 4T1 (3C13870) and 4-port Fractional T1 FIC 4T1-F (3C13821) 69

Internal DIP Switch

Table 10

	4-port channelized
	FIC 4-port
Card	Fractional E1 FIC
DIP switch	S2	S1	S2	S3	S4
the controlled	Interface 1	Interface 0	Interface 1	Interface 2	Interface 3
E1 interface

Interface cables

1Select the 4E1/E1 cable appropriate to the type of the port on the remote device, and correctly set the DIP switches of the 4-port E1/CE1/PRI FIC/4-port Fractional E1 FIC.

■If the impedance of the remote port is 75-ohm, select the E1 75-ohm unbalanced coaxial cable and 75-ohm 4E1 adapter cable, and set all the DIP switches on 4-port E1/CE1/PRI FIC/4-port Fractional E1 FIC to the ON position (that is, the port impedance is 75-ohm).

■If the impedance of the remote port is 120-ohm, select the E1 120-ohm balanced twisted-pair cable and 120-ohm 4E1 adapter cable, and set all the DIP switches on 4-port E1/CE1/PRI FIC/4-port Fractional E1 FIC to the OFF position (that is, the port impedance is 120-ohm).

2Insert the DB25 connector of the 4E1 adapter cable into the desired DB25 port on 4-port E1/CE1/PRI FIC/4-port Fractional E1 FIC port and tighten the thumbscrews.

3Determine the sequence number of the DB15 connector at the other end of the 4E1 adapter cable, and connect the connector to the E1 cable.

4Power on the Router, and check the status of the LINK LED on the card panel. An OFF LED means that the line has failed and the signal has not been synchronized. Check the line in this case.

4-port Channelized T1/PRI FIC 4T1 (3C13870) and 4-port Fractional T1 FIC 4T1-F (3C13821)

4-port Channelized T1/PRI FIC

4-port Channelized T1/PRI FIC function to transmit, receive, and process T1 data flows. In addition, they provide CT1 access, implementing the ISDN PRI function, so that one board can serve multiple purposes.

4-port Fractional T1 FIC

4-port Fractional T1 FIC are fractional T1 (T1-F) cards. They are different from in the sense that:

■The time slots can only be bundled into one channel at the speed of nx64K or 56K, given n=1-24. However, a T1 card allows the arbitrary grouping of 24 channels and multiple bundling operations.

■The FIC cards do not support PRI mode.