Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
FUNCTIONAL DESCRIPTION
Figure 8 is a block diagram of the RFL NMS module. It is provided to familiarize the user with the
NMS signal flow and interfacing. The figure shows signal flow in the transmit and receive modes of
operation.
SW1
to
SW10
SETTING
OSCILLATOR
(U11)
Actel
FPGA
(U2)
CROSS
POINT
LATTICE
(U6)
3.3 V
T1 & E1
BACKPLANE
& CONTROL
SIGNALS
3.3V 3.3 V 2.5V
IN1
OUT1
IN2
OUT2
RXB
TXA
RXA
TXB
EQLB
PALB
ADRA
ADRB
SERVICE
49.152
mHz
REGULATOR
REGULATOR
U4
POWER
RESET
(U1)
TP1
TP3
2.5V
TP4
3.3V
TP2,
TP12
+5Vdc
Ground
FRONT
PANEL
LEDs
RS-232 SIGNALS
T
I
Figure 8. Block diagram, RFL NCM module.
RFL NCM RFL Electronics Inc.
Novemb
er 1, 2012 20 (973) 334-3100