Switches S2-1, S2-2, S2-3, S2-4: Control Port Address -- LSD
Use Switches S2-1, S2-2, S2-3 and S2-4 to set the least
significant digit of the the Model 1092RC control port address. For
example, using the table above, if the desired address is “63”, the “3” is
the least significant digit in the address, set Switches S2-1, S2-2, S2-3
and S2-4 to OFF OFF ON ON, respectively.
*NOTE:
You may also use Switch S2-1 to enable
19.2 kbps
synchronous
operation by setting Switch S2-1 to the ON position.
However, when Switch S2-1 is in the ON position, LSD addresses
0, 2, 4, 6, and 8 may not be used for the Control Port Address.
Switches S2-5, S2-6, S2-7: Control Port Address -- MSD
Use Switches S2-5, 2-6 and S2-7 to set the most significant digit of
the Model 1092RC control port address. For example,using the table
above, if the desired address is “62”, the “6” is the most significant digit
in the address, set Switches S2-5, S2-6, and S2-7 to ON, OFF, OFF,
respectively.
Switch S2-8:
Reserved for Factory Use
Switch S2-8 is reserved for factory use and must in the ON position.
10
4.3.4 Two-Wire Cable Connection Via RJ-45
1. The RJ-45 connector on the Model 1092RC’s twisted pair
interface is polarity insensitive and is wired for a two-wire
interface. The signal/pin relationships are shown in Figure 9
below.
2. Proper wiring of pairs between the two modems is as follows:
SIGNAL
PIN#
PIN#
SIGNAL
TIP
4--------------------------------------------- 4
TIP
RING
5--------------------------------------------- 5
RING
4.3.5 Connection to the Control Port Interface
Please refer to the Model 1000CC Control Card user manual for
cable requirements of the Control Port Interface.
27
Notice!
Any modular twisted pair cable connected to
the Model 1092RC must be shielded cable, and the outer
shield must be properly terminated to a shielded modular
plug on both ends of the cable.
Figure 9.
Model 1092RC twisted pair line interface.
1 (N/C)
2 (GND)
3 (N/C)
4 (Tip)
5 (Ring)
6 (N/C)
7 (GND)
8 (N/C)
1
2
3
4
5
6
7
8
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