User's Manual

Nexus FT PCBA Connections
044-05251 Rev C 2-5
Pin 6 AIC Ground.
Two alarm outputs are 1 pole closing and 1 pole opening relay outputs insolated from each other. Maximum
ratings, re
lated to ground or any other alarm terminal, are 50 VAC / 60 VDC. The alarm outputs are defined as
follows:
Pin 9 and 1 AO1 and AO8 Closed when operating, otherwise open.
Pin 10 and 2 AO6 and AO7 Open when operating, otherwise closed.
Pin 11 and 3 AO2 and AO5 Closed at alarm state, otherwise open.
Pin 12 and 4 AO3 and AO4 Open at
alarm
state, otherwise closed.
Table 2-5 DIA PCBA Connections
Port Connected to
P2 CU PCBA
P3, 5, 6 Not Used
P4 ALI or RCI PCBA
P11 - 14 Channel PCBA positions 1 through 4
P21 PSU, connector 1
P22 LED PCBA in cover
P23 LNA/UL (for RH770020/101 ONLY,
P23 conn
ects to LNA/UL1)
P24 LNA/DL
P25 Expansion output port to cover circuitry. Only in cabinets
P26 Expansion input port to cover circuitry. Used in equipped high covers
P27 Auxiliary Port (8-pin male) - Pins 2 and 3 must
always
be interconnected to
provide the CU and ALI/RCI PCBAs with voltage. If there is no cable
connected, pins 2 and 3 must be interconnected with a jumper
P28 Door switch port - Normally, alarm input AI4 is used for door opening alarm
EAL4 which is arra
nged using an optional door switch. Signal AI4 and AIC
are thus available also in the P28 connector, to which the door switch is
connected. The EAL4 door switch alarm is activated 10 – 30 seconds after
the cover has been opened
P29 Power to FON
P31 RS-232 PC Port (9-pin D-sub female) - Used
for local PC communication
P32 RS-232 Modem port (9-pin D-sub male)
P33 External
Alarm Port (15-pin D-sub female) - Used for external alarm sensors
and alarm equip
ment. Four alarm inputs, EAL1 – EAL4, and two alarm
outputs
P34 Not used
P35 PSU, connector 2
P36 IP or R2R connection between CU and FON
P37 LNA Diversity DL
P38 LNA Diversity UL (for RH770020/101 ONLY, P3
8 connects to LNA/UL2)