Paradyne 3000 manual Shared Diagnostic Unit SDU Installation, SDU Faceplate

COMSPHERE 3000 Series Carrier

Shared Diagnostic Unit (SDU)

Installation

An SDU (Figure 3-14), which is a circuit card designed to mount in the slot at the extreme left end of the carrier (Slot 0), is required under either or both of the following conditions:

• The DSUs or dial/lease modems in the carrier are to be controlled by an NMS.

• Multiple carriers in a cabinet configuration are to be controlled from a single SDCP.

The SDU is not required for a single carrier without an

NMS interface or a single carrier with an SDCP installed.

At the rear of the SDU circuit card are four modular

jacks (Figure 3-15). From the top down, these jacks are as follows:

• CC IN (6-pin)

• CC OUT (6-pin)

• FP IN (8-pin)

• FP OUT (8-pin)

SDU status indicators are defined in Table 3-3.

Below these connectors are two sets of DIP switches:

S2 (The top DIP switch) is used to specify the carrier address (1± 8) so that each device in a cabinet configuration has a unique iden- tity. Only the first three switches (S2-1 through S2-3) are operational; the fourth switch (S2- 4) is reserved for future use.

S1 (The bottom DIP switch) is used to specify the diagnostic protocol to be supported (DPII, ADp, or DMC), and the CC or DC operation to be supported for DPII and ADp protocol modes.

Preinstallation Inspection

Check the SDU for physical damage. Ensure that the
circuit card and faceplate are not damaged. If the SDU
shows signs of damage, report it immediately to your
shipping representative and also to your AT&T Paradyne	Figure 3-14. SDU Faceplate
representative. Otherwise, install the unit.

3-22 December 1994 3000-A2-GA31-80