RAD Data comm Modular Access Device with Integrated Router, E1/T1 20. E1 Link1 Parameters, Ccitt

FCD-IPMInstallation and Operation ManualChapter 5 Setup Menu

		Table 5-20. E1 Link1 Parameters
Parameters	Possible Values	Description
Frame Type	G732N	2 frames per multiframe. Time slot 16 can be used for user data.
	G732S	16 frames per multiframe. Time slot 16 is used for the Channel
		Associated Signaling (CAS).
CRC-4	On, Off	Cyclic Redundancy Check – enables or disables calculation of
		4-bits check sum in order to detect errors in frames
Sync		Defines the time required for the link to return to normal
		operation after a red alarm event has terminated.
	FAST	1 second
	AT&T 62411	10 seconds
	CCITT	100 msec.
Idle Code	00 to FF	Sets the value to be transmitted on the NC time slots
Rx Gain	12 dB, 30 dB	Sets the maximum receive sensitivity for the E1 interface
Remote Alarm		When configuring this parameter from the E1 Parameters menu,
Indication (for		select this parameter to determine whether to transmit a yellow
FCD-IPM with a		alarm indication on the E1 sublink when Link 1 is in yellow
Sublink)		alarm state.
		When configuring this parameter from the Sublink E1
		Parameters menu, select this parameter to determine whether to
		transmit a yellow alarm indication on Link 1 when sublink E1 is
		in either yellow or red alarm state.
		Note: When Link 1 is in red alarm state, an “all ones” indication
		is sent to all of the E1 sublinks.

Out-Of-Service

Signaling (for FCD-IPM with a

Sublink) Mark

Determines the value of the A, B signaling bits sent to Link 1 when the sublink is in the Out-Of-Service state. The C and D signaling bits are not affected.

Both A and B signaling bits are forced to '1' during out-of-service period

	Space	Both A and B signaling bits are forced to '0' during out-of-service
		period
	Mark-space	The A and B signaling bits are forced to '1' for 2.5 seconds, then
		shift to the '0' state until the out-of-service period ends
	Space-mark	The A and B signaling bits are forced to '0' for 2.5 seconds, then
		shift to the '1' state until the out-of-service period ends.
Sublink Status	Enable or Disable
(for FCD-IPM
with a Sublink)

Interface Parameters Menu 5-57