Westermo U200 Installation guide User Manual
Page 29
V4.2
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U/R/T200 series
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Black *
- Minus supply voltage (Ground) *
Red *
+ Plus supply voltage *
* Supply voltage is not present on RS422 connector on switch. Supply voltage must be from external
power supply. (Reason is that the FS200 series of switches can operate on up to 60VDC, while the
Acutime 2000 requires 24VDC power supply). The Acutime can also be powered from the same power
source as the switch via the power plug if the switch is powered from external 24VDC.
See tables below for more details about signal routing.
Table 1 shows the pin-out of the T200 GPS interface connector, and table 2 shows the pin-
out of the Acutime 2000.
Pin nr
Function
Description
1
RS422 TX +
RS422 positive transmitter output to GPS
2
RS422 RX +
RS422 positive receiver input from GPS
3
PPX OUT2 TTL
OUT2, PPX output TTL signal
4
PPS RS422 RX+
Pulse per second input from GPS RS422 I/F
5
PPS TTL INPUT
Pulse per second input from GPS TTL level
6
PPX OUT1 TX-
OUT1, PPX RS422 negative transmitter output
7
PPX/TTL 0V
Return path for RS232 and TTL signals
8
PPX OUT2 TX-
OUT2, PPX RS422 negative transmitter output
9
PPX OUT1 TTL
OUT1, PPX output TTL signal
10
RS232/TTL 0V
Return path for RS232 and TTL signals
11
RS422 TX-
RS422 negative transmitter output to GPS
12
RS422 RX-
RS422 negative receiver input from GPS
13
PPX OUT2 TX+
OUT2, PPX RS422 positive transmitter output
14
PPS RS422 RX-
Pulse per second input from GPS RS422 I/F
15
PPX OUT1 TX+
OUT1, PPX RS422 positive transmitter output
Table 1, pin-out GPS interface connector
Pin nr/ Wire color
Function
Description
1/Red
+8-36V
Positive DC power
2/Violet
Port B RS422 RX-
Port B RS422 Negative receive
3/Orange
Port B RS422 RX+
Port B RS422 Positive receive
4/Brown
Port B RS422 TX-
Port B RS422 Negative transmit
5/Yellow
Port B RS422 TX+
Port B RS422 Positive transmit
6/White
Port A RS422 RX-
Port A RS422 Negative receive
7/Gray
Port A RS422 RX+
Port A RS422 Positive receive
8/Green
Port A RS422 TX-
Port A RS422 Negative transmit
9/Black
Ground
Negative DC power / ground
10/Blue
Port A RS422 TX+
Port A RS422 positive transmit
11/Orange w/ white
stripe
PPS RS422 TX+
RS422 Pulse per second positive
transmit
12/Black w/ White
stripe
PPS RS422 TX-
RS422 Pulse per second negative
transmit
Table 2, pin-out Acutime Gold interface connector
Connector type T200:
15-pol high density D-sub type connector, female part on the switch and male part on cable
assembly.