Schweitzer Engineering Laboratories SEL-734 - Table 2.2 Expansion Slot C (#1) Circuit Board Jumper J7 Information; Figure 2.10 J7 Internal Telephone Modem Jumper Positions; Figure 2.11 J7 Location on the Auxiliary Communication Board

2.11
Date Code 20090730 Instruction Manual SEL-734 Meter
Installation
Making Rear-Panel Connections
required jumper position. Jumper J7 is shipped from the factory in the ON
position when a modem is optioned. Figure 2.11 shows the location of jumper
J7 on the auxiliary communication board.
Figure 2.10 J7 Internal Telephone Modem Jumper Positions
Figure 2.11 J7 Location on the Auxiliary Communication Board
The SEL-734 optional internal modem complies with Part 68 of the FCC
Rules and Regulations. The SEL-734 has a label that contains the FCC
Registration Number and Ringer Equivalence Number (REN) of the modem.
You must, upon request, provide this information to your telephone company.
The REN is useful in determining the quantity of devices you can connect to a
telephone line and still have all of these devices ring when the number is
called. In most areas, the sum of the RENs of all devices connected to one line
Table 2.2 Expansion Slot C (#1) Circuit Board Jumper J7 Information
COMMINF SW Setting HW (J7) Selected
232 OFF 232
485 OFF 485
232 ON 232
Modem ON Modem
ON
OFF
J7 ON J7 OFF
RJ-11
Modem
J7
EIA-232
Port
EIA-485
Port
Courtesy of NationalSwitchgear.com