Calculating Your Power Needs
To determine whether an auxiliary power supply card is required for your system, refer to the Options Power-Requirement Worktable at right. Then, list the quantity of the particular DBK option in use, and multiply the quantity by the mW power consumption indicated.

Place the resulting totals in the last column, add them, and list the overall total at the bottom of the column. If the overall total is equal to or less than the appropriate number indicated in the Available Power Chart below, the application does not require an auxiliary power supply. If your overall total exceeds the amount indicated in the chart below, then one or more DBK32As are required.

DBK Options Power-Requirement Worktable
DBK Options	Voltage References			Quantity	mW			Total
	+15 VDC	-15 VDC	+5 VDC
DBK1	0	0	0		x	0	=
DBK2†	18 mA	18 mA	5 mA		x	565	=
DBK4	95 mA	80 mA	25 mA		x	2750	=
DBK5†	2 mA	2 mA	15 mA		x	135	=
DBK7	14 mA	8 mA	18 mA		x	420	=
DBK8	15 mA	15 mA	<1 mA		x	455	=
DBK9	21 mA	16 mA	<1 mA		x	560	=
DBK11A	0	0	0		x	0	=
DBK15	16 mA	16 mA	<1 mA		x	485	=
DBK16	37 mA	32 mA	<1 mA		x	1040	=
DBK17	30 mA	30 mA	<1 mA		x	905	=
DBK18	36 mA	36 mA	<1 mA		x	1085	=
DBK20	0	0	<10 mA		x	50	=
DBK21	0	0	<10 mA		x	50	=
DBK23**	0	0	<2 mA		x	10	=
DBK24**	0	0	<2 mA		x	10	=
DBK25	0	0	<2 mA		x	10	=
DBK41	0	0	0		x	0	=
DBK42**	<1 mA	<1 mA	<1 mA		x	35	=
DBK43A**	<1 mA	<1 mA	<1 mA		x	35	=
DBK44	<1 mA	<1 mA	60 mA††		x	330	=
DBK45	52 mA	52 mA	<1 mA		x	1565	=
DBK46	20 mA	20 mA	400 mA		x	2600	=
DBK48†	25 mA	25 mA	<1 mA		x	750	=
DBK50**	<1 mA	<1 mA	<1 mA		x	35	=
DBK51**	<1 mA	<1 mA	<1 mA		x	35	=
DBK55†	30 mA	20 mA	40 mA		x	950	=
DBK65†	<25 mA	<25 mA	<1 mA		x	755	=
DBK70**	<1 mA	<1mA	<1 mA		x	35	=
DBK80	25 mA	25 mA	<1 mA		x	755	=
DBK81	35 mA	35 mA	<2 mA		x	1060	=
DBK82	60 mA	60 mA	<2 mA		x	1810	=
DBK83	60 mA	60 mA	<2 mA		x	1810	=
DBK84	60 mA	60 mA	<2 mA		x	1810	=
DBK85†	25 mA	25 mA	<1 mA		x	755	=
DBK90	40 mA	40 mA	40 mA		x	1400	=
Column Total

** Module with internal power supply, powered separately
† Not used with LogBook
†† 60 mA value is based on 30 mA for each of two 5B modules. This value will be higher if using 5B module 5B38 (200 mA for each 5B38), or if using 5B39 (170 mA for each 5B39).

* LogBook does not function with DBK2 and DBK5