Rear View CMU
1100.4903.12 1.8 E-10
KEYBOARD
MONITOR
COM 1
AUX
SERVICE
IF 3 RX CH1
Inputs and outputs for reference frequency and network-specific clock frequency
REF OUT 1 REF OUT 2REF IN
REF OUT 1REF IN
Intermediate
frequency
from CMU receiver,
IF interface
uxiliary and
service connectors,
I/Q interface
AUX4
I/Q CH1
IF3 RX CH1 IN
IF3 RX CH1 IN IF3 RX CH1 IN
IF3 RX CH1 IN
Fig. 1-8 CMU rear view – signal inputs and outputs
Intermediate frequency
IF 3 RX CH1
IF3 RX CH1 (BNC connector) from CMU receiver
!
Chapter 8,
"Hardware
Connectors"
Reference frequency
REF IN REF OUT 1 REF OUT 2
REF IN Input for external reference frequency
REF OUT 1 Output of reference frequency of CMU:
10 MHz or the signal of input REF IN
REF OUT 2 Output for network-specific clock
frequency
!
!
Chapter 8,
"Hardware
Connectors
Chapter 3, "RF
Connection
Control"
Caution!
Do not use open or unshielded cables in order to comply with EMC directives!
AUX, SERVICE, AUX4, extensions
AUX
AUX4
SERVICE
Two 9-contact and one 15-contact SUB-D connectors:
AUX Auxiliary connector providing a DC
voltage to supply external equipment
such as CMU-Z6
SERVICE Service connector for RXTX board
(only for internal test purposes)
AUX4 Bidirectional input/output for digital
status, control, and trigger signal
!
Chapter 8,
"Hardware
Connectors
The remaining 15-contact SUB-D connectors are
reserved for future extensions.
!
Chapter 8,
"Hardware
Connectors
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