View ds2107as datasheet:

DS2107AS IL08 ********** SCSI TERMINATOR - TOP VIEW - 1 2 TERMPWR1 R1 TERMPWR1 IN 1 (+4 to 5.25V) 16 PD IN 9 3 TERMPWR2 R2 4 R3 R1 OUT 2 15 VREF2 IN 7 5 VREF1 R4 15 6 VREF2 R5 R2 OUT 3 NC 14 10 R6 16 11 PD R7 R3 OUT 4 13 R9 OUT 12 R8 13 R9 R4 OUT 5 12 R8 OUT R5 OUT 6 11 R7 OUT PD ; POWER DOWN INPUT R1-R9 ; SIGNAL TERMINATION OUTPUT VREF1 IN 7 10 R6 OUT TERMPWR1 ; TERMINATION POWER 1 INPUT TERMPWR2 ; TERMINATION POWER 2 INPUT 8 GND (+4 to 5.25V) 9 TERMPWR2 IN VREF1 ; REFERENCE VOLTAGE 1 INPUT VREF2 ; REFERENCE VOLTAGE 2 INPUT 16 PD 1, 9 TERMPWR1 POWER TERMPWR2 DOWN 2 CIRCUITRY R1 BANDGAP REFERENCE 3 R2 + 4 – R3 5 R4 6 R5 8 10 GND R6 11 R7 12 R8 13 R9 7, 15 VREF1 VREF2