Dataradio INTEGRA-H - Extending a Landline (Tail Circuit)

PRODUCT OVERVIEW
1-8
Part No. 001-4090-101/102
1.11.6 EXTENDING A LANDLINE (TAIL CIRCUIT)
Integra-H may be used to extend a landline circuit (giving access to difficult locations, etc.). This type of
connection is called a “tail circuit” and is shown in Figure 1-5. The tail circuit assembly may be used in any of the
network types described in the preceding sections.
Figure 1-5 Landline (Tail Circuit)
Note: The phone-line modems should be full duplex units.
Figure 1-6 DCE Crossover Cable for RTS-CTS mode
Some point-to-point FDX landline modems or line drivers may require the use of DOX mode and an
alternate pinout for DTR, DCD, CTS and RTS as shown in Figure 1-8.
Figure 1-7 DCE Crossover Cable for DOX mode
Integra-H
1
2
3
4
5
6
7
8
9
DE-9M
7
3
2
8
5
1
4
DE-9M
D
C
D
RXD
TXD
DTR
GND
RTS
CTS
R
T
S
TXD
RXD
CTS
GND
DCD
DTR
3
2
5
2
3
5
TXD RXD
RXD TXD
GND GND