C O R P O R A T I O N
TPCMQ DC/DC CONVERTER SERIES
OPERATING MANUAL
14
14.0 CONTROL & SUPERVISORY SIGNAL CONNECTIONS
14.1
Connections for control and supervisory signals are made at the rack/shelf
rear to connector J4, a standard 25-pin subminiature D connector (Posi-
tronics No. SD25F0S5OOX with FC752OD pins). The mating connector is
Positronics SD25M00OOZ with MC752OD pins.
14.2
The pin connections to J4 are shown in the table.
J4 SIGNAL CONNECTOR
J4 PIN CONNECTIONS
PIN
FUNCTION
PIN
FUNCTION
1
Inhibit
14
Input Power Fail -1
2
Overtemp. Warning -1
15
Output Power Good -1
3
Current Monitor -1
16
Input Power Fail -2
4
Overtemp. Warning -2
17
Output Power Good -2
5
Current Monitor -2
18
Input Power Fail - 3
6
Overtemp. Warning -3
19
Output Power Good -3
7
Current Monitor - 3
20
Module Present -1
8
+5V Standby
21
Module Present -2
9
SDA
22
Module Present -3
10
Current Share
23
- Sense
11
+ Sense
24
Remote Adjust - 1
12
Remote Adjust -2
25
Remote Adjust - 3
13
SCL
NOTES:
Standby return is connected to -Sense lead. Current rating of +5V standby is
250mA. All signals are referenced to -Sense lead. Pins 9 & 13 are I
2
C
functions when that option is fi tted. When I
2
C is present, pins 2-7 and 14-19
have
no
function.
14.3 I2C Serial Data Bus.
The I
2
C serial data bus (Option Z) is available on
both the TPCMQ48 and TPCMQ24 modules and rack/shelves. It must
be ordered on both. Pin 9 of J4 on the rack/shelf is the SDA (serial data)
output and pin 13 is the SCL (serial clock) output. The I
2
C data output
provides output voltage, output current, internal temperature and manufac-
turing data on each module (model no., serial no., etc.). When this option is
present, pins 2 to 7 and 14 to 19 do not function. For complete information
on the I
2
C option, please contact the factory.
Standard subminiature D
Connector
(Positronic SD25F0S5OOX
with FC7520D pins)
