Introduction
b - 4 • • • MPS-4100 product guide
Setting the baud rate
All network devices on a Crossfire network must communicate at the same baud
rate (typically 19.2 k). Refer to the site plan for the Crossfire baud rate and set the
baud rate on the Communications Interface Card (see Figure b-3).
Connecting the network wiring
For network communications, both the A-side and B-side channels must be
connected. There are two removable terminal blocks for the network
connections. J1 is for the B-side wiring, J3 is for the A-side wiring. For added
security, install the network wiring inside conduit.
1. Remove the cover from the back of the MPS-4100 Receiver unit.
2. Route the network communication cables through the conduit port on the
back cover.
3. Remove terminal blocks J1 and J3 from the card.
4. Make the network wiring connections according to Figure b-4.
5. Ensure that each cable shield is connected to pin 5 (GND) of the appropriate
terminal block. (Use single point grounding - connect the shield to ground at
one end, trim and tape the shield at the other end.)
6. Plug the B-side terminal block into J1.
Figure b-3 Baud rate settings
Figure b-4 Network Wiring Connections
SW1 Baud rate/LED power
(switch set at 19200
LED power OFF)
S1, S2, S3 - set Baud rate
S4 - used for LED power
ON = LED power ON
OFF = LED power OFF
1
4
Baud rate switch position
300
600
1200
2400
4800
9600
19200
38400
1 2 3
OFF OFF OFF
ON OFF OFF
OFF ON OFF
ON ON OFF
OFF OFF ON
ON OFF ON
OFF ON ON
ON ON ON
O
N
COMM B
COMM A
Crossfire communications
5
4
3
2
1
GND
RxA-
RxA+
TxA-
TxA+
5
4
3
2
1
GND
RxB-
RxB+
TxB-
TxB+
J1
J3
Содержание MPS-4100
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