SERIES AP445 ACROPACK
USER
’S MANUAL
Acromag, Inc. Tel: 248-295-0310
- 32 - http://www.acromag.com
- 32 -
www.acromag.com
Figure 3 AP445 to AP440 Loopback Connections
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IN
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AP440 INPUT
AP440 INPUT
AP440 INPUT
AP440 INPUT
AP445 OUTPUT
AP445 OUTPUT
AP445 OUTPUT
AP445 OUTPUT
AP445 OUTPUT TO AP440 INPUT LOOPBACK CONNECTIONS
AP445 CONNECTED
AS A HOT-SIDE
SWITCH
AP445 CONNECTED
AS A LOW-SIDE
SWITCH
AP445 CONNECTED
AS A LOW-SIDE
SWITCH
AP445 CONNECTED
AS A HIGH (HOT)
-SIDE SWITCH
NOTE THAT FOR LOOPBACK PURPOSES, THE COMMON LINE OF AN AP440 PORT AND THE
COMMON LINE OF AN AP445 PORT DO NOT NECESSARILY CONNECT TOGETHER.
THE AP440 & AP445 INCLUDE 4 PORTS OF 8 CHANNELS EACH. EACH PORT SHARES A PORT
COMMON. SEPARATE PORT COMMONS FACILITATE PORT TO PORT ISOLATION. THE AP445 ALSO
INCLUDES SEPARATE PORT SUPPLY PINS FOR CONNECTING TO THE ON-BOARD PULLUPS.
FIGURE 3: AP445 TO AP440 LOOPBACK CONNECTIONS