Zhone Technologies 900 - Manual (Page 89)

Data Cards IMACS System Release 5.1.6 3-1
OCU-DP Card Introduction
Chapter 3
OCU-DP Card
3.1 Introduction
This chapter provides installation, configuration, and troubleshooting information for the
Office Channel Unit - Dataport (OCU-DP) Cards. These are labeled as the OCU-DP 2,
OCU-DP 5 and OCU-DP 10 Cards on their faceplate ejectors.
This chapter also provides installation information for the OCU-DP port activation card,
which is used on the OCU-DP 5 Card.
The Integrated Access System uses OCU-DP cards to interface directly with Data Service
Units/Channel Service Units (DSU/CSUs) supporting data traffic up to and including 64 kbps.
A four-wire circuit can connect the OCU-DP card to a DSU/CSU up to four miles away. In the
Switched 56 kbps mode, customers access the network on an as-needed basis via dial-up
commands. The system must be equipped to provide -48 VDC power to fully support the
OCU-DP card.
3.2 OCU-DP Card Descriptions
3.2.1 O CU-DP 5 Card Description (824160)
The OCU-DP 5 Card is a 5 port card which allows provisioning of DDS services or
consolidation of DSU traffic as DS0-A or DS0-B. Interfaces directly to DSU at speeds up to
and including 64Kbps. Does not support BCH error correction, performance monitoring or
operation in CSU mode (used only for back-to-back OCU-DP ports). Each port may be
connected to a DSU/CSU operating at 64, 56, Switched 56, 19.2, 9.6, 4.8 or 2.4Kbps. DSUs
can be local to several thousand feet distant to the Integrated Access System based on speed
and wire gauge.
3.2.1.1 Card Jumpers/Switch Settings
The OCU-DP 5 Card doesn’t have any jumpers or switches on its mainboard.