Specifications

OHSU Ports 10-1
Chapter 10
OHSU ports
10.1 Introduction
This chapter provides configuration, and troubleshooting information for the optional Optical
High-Speed Data Unit (OHSU) ports. These ports are labeled on the rear faceplate as OHSU1
and OHSU2. Connectors above each OHSU port LED indicator are labeled Tx and Rx for the
transmit and receive fiber connectors. Each OHSU port allows you to connect to Telephone
Protection Equipment (TPE) in compliance with IEEE C37.94.
10.2 OHSU port
10.2.1 Two-Port OHSU port Description
The OHSU port provides two full duplex IEEE C37.94 optical ports for optical serial N times
64 kbps interface capability. Each optical port contains a transmit (Tx) and receive (Rx)
connector along with a status LED. The ports shown below in Figure 10-1 show the two ports
on the rear of the box, with the dust caps removed from OHSU port 1, ready for optical
connectors.
Figure 10-1. Two-Port OHSU port
RS-530