3. Each Component Function
16
Hardware Manual
Terminating resistor setting
When inserting a terminator, use the terminator setting switch (SW4). Set the terminator depending on
the remote device to which to connect the board. The board contains a 100
Ω
resistor as a terminator.
See Figure 3.5 for the presence or absence of a terminator for connection to the party line.
Individual bits correspond to different signal lines; bits 1 - 4 serve for CTS, RTS, RxD, and TxD,
respectively.
Setting method
To set the terminal to a resistor other than 100
Ω
, set the terminator setting switch to OFF and insert an
external terminator.
Table 3.6. Terminator Settings
Insert terminator
[Term ON]
Do not insert terminator
[Term OFF]
Setting method
(SW4)
1 2 3 4 5 6 7 8
ON
(A) or (D) below
(either end of signal line)
1 2 3 4 5 6 7 8
ON
(B) or (D) below
(other than end of signal line)
Terminator
Terminator
(A)
(D)
(C)
(B)
Figure 3.5. Party Line Connection
Summary of Contents for IPC-PT/LS15 Series
Page 5: ...iv Hardware Manual...
