Zhone Technologies 900 - Manual (Page 13)

Data Cards IMACS System Release 5.1.6 1-1
HSU Card Introduction
Chapter 1
HSU Card
1.1 Introduction
This chapter provides installation, configuration, and troubleshooting information for the
High-Speed Data Unit (HSU) Cards. These cards are labeled as follows on their faceplate
ejectors: Two-port HSU 530/35 (820260), HSU-T V11 (820360), HSU 35 (821260), HSU-AD
530/35 (821360), HSU-T V35 (821460), Four-port HSU 530/35 (821570) and the HSU*4E
530/35 SS (821660). This chapter also provides information for the Personality Modules used
with some of these cards.
The HSU Cards allow you to connect high-speed data terminal equipment (DTE) and/or data
communications equipment (DCE) to WAN links, resource cards, and/or other HSU cards.
1.2 HSU Cards
1.2.1 Two-Port HSU530/35 Card Description (820260)
The two-port HSU 530/35 Card supports two RS-530 or RS-449 CPE data devices. It can also
support V.35 and RS-232 data when used with personality modules, which are described later
in this chapter.
1.2.1.1 Two-Port HSU Card Jumper/Switch Settings
The HSU 530/35 Card has two slide switches that you must set for either RS-530 or V.35
interfacing on its data ports. Figure 1-1 shows these switches, which are factory-set to RS-530
operation (up positions) for both ports. To change a card port for V.35 operation, reset its
associated switch to the down position.