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Installing the NetAXS-123 Panels
System Configuration
4.6 M-56K Dial-up Modem, RS-485 Connection via Hub (PCI-3)
This configuration supports 31 NetAXS-123 panels for each drop line.
Figure 18: M-56K Dial-up Modem, RS-485 Connection via Hub
Note: You should ground each NetAXS-123 Standard (Metal) Enclosure panel individually with an
Earth Ground.
COM Port
M-56K
FAX/MODEM
M-56K
FAX/MODEM
Straight Through Cable
EGEG
It is recommended to Earth Ground (EG)
each NetAXS enclosure Individually
Analog
Phone
Line
Dedicated
analog
phone
Remote DIP Switch Settings
(1, 3, 8 ON) (2, 4, 5, 6, 7 OFF)
DB 9 / DB 25 Connectors
Female Male
1
13
14
25
1
13
14
25
1
5
69
1
5
69
Female 9 Pin Male 25 Pin
(RX) 2 3 (RX)
(TX) 3 2 (TX)
(Comm) 5 7 (Comm)
Only Earth Ground (EG)
one side of cable
Terminal
RS-485 Cable
NetAXS-123 Panels
C-TB9 - A
C-TB9 - B
C-TB9 - COM
4,000 ft. (1,200 m) max, 24 AWG, 2 twisted pairs with
shield, 120 ohm, 23 pf (HAS part no. NCP2441-TN)
NetAXS-123
Panel
DIP Switch Settings
S1-S5 Panel Address
S6: OFF
S7: OFF
S8-S9: OFF: 485
Termination OFF
DIP Switch Settings
S1-S5 Panel Address
S6: OFF
S7: OFF
S8-S9: ON: 485
Termination ON