Johnson Controls IFC-1010 Technical Manual page 36

Display
Interface
Connection
If a supervised CRT-1 or CRT-1 with keyboard has been
installed, this interface cannot be used. TheCCM-1
Communications Converter Module must be employed to
connect the LCD-80 in terminal mode. Refer to the
LCD-80 Liquid Crystal DisplayTechnical Bulletin, (LIT-445151)
Figure 28: Display Interface Assembly
36 Hardware Installation—Installing the IFC-1010/2020
DIA-1010 and/or DIA-2020 provide access to the system CPU and the
optional SIB, and an EIA-232 unsupervised printer interface (Figure 28).
When terminal supervision is not required and the terminal
has no keyboard, the DIA-1010 and/or DIA-2020 provide an EIA-485
interface, which may be used to connect an LCD-80 (in Terminal mode).
Display Interface Assembly (DIA-1010/DIA-2020)
The plug-in terminal block TB1 may
be removed to facilitate field printer
connections (see below).
TB1
(+) (-)
Return Return
(+) (-)
Out Out
EIA-485 to LCD-80
TB1
All terminals are
power-limited.
Transmit
to Printer
N17
7
Plug this DB-25 connector into the RS-232 port of
N14 N15
the PRN-3 printer, or Keltron Printer No. VS4095/5.
TB1
Display Interface Board
(DIB)
J3
J4
DIB J3
for details.
DIB J4
EIA-232 to PRN-3, or
Keltron Printer No. VS4095/5
Outputs are power-limited, but not supervised or
opto-isolated. Connections must be made with overall
EIA-232
Reference
foil/braided-shield twisted paired cable suitable for EIA-232
and EIA-485 applications. The printer must be installed in
N16
the same room as the control panel. Terminate the shield
3 2 1
at the cabinet entrance only.
N13, N14, N15, N16, N17
N13
(if present)
N13
Connect ribbon cable
75226 from DIB J3
to CPU P3.
Connect ribbon cable
71046 from DIB J4
to SIB P4.
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