Paradyne 3551 manual Diagnostic External DBU Configuration Options

COMSPHERE 3550 Series Data Service Units

Table 5-4

Diagnostic (External DBU) Configuration Options

Diag Type: Disr

Next Disr None Prev

Diagnostic Type. This configuration option defines the diagnostic interaction between control and tributary DSUs that are in backup using an external dial backup unit (DBU). All DSUs on the same circuit should be set the same (e.g., if the control is set to Disr, all its tributaries should also be set to Disr).

Disr	Ð	Select disruptive diagnostics for diagnostic data to be carried between the control and the tributary DSUs
		over the same (primary) channel as user-transmitted data. User-initiated commands are sent between the
		control and the tributary DSUs disruptively, interrupting data.
None	Ð	Select none if only local diagnostics are to be allowed; that is, there will be no diagnostic communications
		with remote devices.

Table 5-5

(1 of 2)

Diagnostic (General) Configuration Options

Position: Cntrl or Trib

Next Cntrl Trib Prev

Network Position. This configuration option determines the DSU's position in the network, as well as its test and diagnostic capabilities.

Cntrl	Ð	Select if the DSU is a control (PTPC or MPTC configuration).
Trib	Ð	Select if the DSU is a tributary (PTPT or MPTT configuration).
LinkConfig: Pt-Pt or M-Pt
Next	Pt-Pt		M-Pt	Prev

Link Configuration. Used to define a point-to-point or multipoint circuit, this configuration option is required for proper testing, dial backup, unit operation, and is required when using nondisruptive diagnostics.

Pt-Pt	Ð	Select for a point-to-point configuration (PTPC or PTPT configuration).
M-Pt	Ð	Select for a multipoint configuration (MPTC or MPTT configuration).

Resp Period: 1

Next 1 2 10 Prev

Response Period (only displayed when any Diag Type is set to NonD or Mixed, LinkConfig is set to M-Pt, and Full Mode is enabled). Used for single-port multipoint applications and applicable to tributary DSUs and DBMs only. This configuration option determines how often health and status messages are transmitted, which are transmitted each time the Request-to-Send (RTS) lead is raised.

1Ð Select if you want the tributary DSU to transmit health and status information every time RTS is raised (not applicable for PTPC, PTCT, or MPTC configurations).

2Ð Select if you want the tributary DSU to transmit health and status information every other time that RTS is raised.

10Ð Select if you want the tributary DSU to transmit health and status information every 10th time that RTS is raised.

5-10 December 1996 3550-A2-GB20-20