Advantech AMT SSPB-Ci60, Installation And Operating Manual

Page: 24 / 49

SSPB-Ci60
5.3 RS-485 INTERFACE
This serial communication interface provides access to all monitor and control functions for the
SSPB Block Up-Converter.
The RS-485 interface must be connected to the Network Management System (NMS).
The interface uses a 6-pin circular connector mounted on the SSPB unit enclosure. The type of
mounting connector is listed
TABLE 5 at page 19 and the location is shown in Figure 3 at page
19. The pin assignment for this interface is shown in TABLE 8 .
If this interface is being used, an interconnecting cable with the proper mating connector must be
fabricated.
TABLE 8 : RS-485 INTERFACE – PIN ASSIGNMENT
Pin Type Signal Name Description
A Output TX+ Serial transmit TX+
B Output TX- Serial transmit TX-
C Input RX+ Serial receive RX+
D Input RX-
Serial transmit RX-
E N/C N/A
Not connected
F Common GND Safety ground / Shield
5.4 RF O
UTPUT
M
ONITOR
I
NTERFACE
This RF output sample port is located at the Mon connector, which is mounted on the SSPB
enclosure. The type of mounting connector is listed in
TABLE 5 at page 19 and the location is
shown in Figure 3 at page 19. This interface is used for the independent monitoring of the SSPB
output. A table of the coupling factor versus the frequency is provided with each unit. Note that
because this port is located before the band-pass filter (BPF) the signal on this port may contain
spurious signals and harmonics. This port should only be used for output power monitoring (via
an external power meter) or should be kept capped if not used.
23