AMETEK ReFlex User Manual
Page 59
Mainframe
ReFlex Power™
2-24
M380056-01 Rev J
Table 2-7. J2 DIGITAL CTRL IN Connector Pinout
Pin
Name
Function
Signal Level
1
A0
Input: chassis address
5V logic level
2
A1
Input: chassis address
5V logic level
3
A2
Input: chassis address
5V logic level
4
7.5VB
Input: digital 7.5V source
Backplane 7.5VDC
5
BGND
Digital signal reference
Backplane circuit common
6
ARCNET_H_IN
Input/Output: ARCNET
differential data bus
ARCNET bus referenced to
BGND
7
ARCNET_L_IN
Input/Output: ARCNET
differential data bus
ARCNET bus referenced to
BGND
8
DIG3_I/O_H_IN
Input/Output: digital-I/O
differential signal
RS-485 logic levels
referenced to BGND
9
DIG3_I/O_L_IN
Input/Output: digital-I/O
differential signal
RS-485 logic levels
referenced to BGND
10 DIG2_I/O_H_IN
Input/Output: digital-I/O
differential signal
RS-485 logic levels
referenced to BGND
11 DIG2_I/O_L_IN
Input/Output: digital-I/O
differential signal
RS-485 logic levels
referenced to BGND
12 DIG1_I/O_H_IN
Input/Output: digital-I/O
differential signal
RS-485 logic levels
referenced to BGND
13 DIG1_I/O_L_IN
Input/Output: digital-I/O
differential signal
RS-485 logic levels
referenced to BGND
14 DIG0_I/O_H_IN
Input/Output: digital-I/O
differential signal
RS-485 logic levels
referenced to BGND
15 DIG0_I/O_L_IN
Input/Output: digital-I/O
differential signal
RS-485 logic levels
referenced to BGND
16 7.5VB
Output: digital 7.5V
source
Backplane 7.5VDC
17 BGND
Digital signal reference
Backplane circuit common
18 TERMH
Termination signal
I/O Interconnect PWA
10VDC referenced to
BGND
19 TERML_1
Termination signal return
I/O Interconnect PWA
10VDC referenced to
BGND
20 REM_INH_IN
Output: differential
remote inhibit signal
RS-485 logic levels
referenced to BGND
21 REM_INH_IN
Output: differential
remote inhibit signal
RS-485 logic levels
referenced to BGND
22 BGND
Digital signal reference
Backplane circuit common
23 PWR1
Output: module enable
from Controller module
5V referenced to BGND
24 7.5VB
Output: digital 7.5V
source
Backplane 7.5VDC
25 CHAS-GND
Chassis ground
Chassis