Tektronix CTS 850, User Manual

Page: 54 / 178

Functional Overview
2–4
CTS850 SDH/PDH Test Set User Manual
Rear-Panel Controls and Connectors
See the appendix on Rear Panel Connections for a more comprehen-
sive explanation of the rear panel connectors.
External Clock Input
(2 Mb/s or 2 MHz)
AC Fuse
VGA
Video
Output
RS-232
Port
1.5 BITS
Clock
Overhead
Add/Drop
Port
(Frame Pulse
Out)
Calibration
Signal
Output
AC Power
Connector Ground
J/CLK
OUT
BITS OUT
(Connector
Not Used)
ANALOG
OUT
J/CLK
IN
DC Fuse
Handset port
GPIB
Port
Figure 2–3: Rear-Panel Controls and Connectors
Front-Panel Status Lights
The status lights make it easy to quickly determine the condition of
the received signal. There are three types of front-panel status lights.
H
Green status lights. Green lights indicate whether a signal is
present and whether the CTS850 has locked onto the signal.