GE Energy
D20/D200
Installation and Operations Guide
General 994-0078-2.00-7
Full
55
Connections and Configuration
, continued
Peripherals:
connect for
power using
D.20 Link
Connect power to A, S, K, C, and AC peripheral boards using the D.20 HDLC Link
using a daisy-chain series of connections from peripheral to peripheral.
Procedure
Connect peripherals using the D.20 Link:
Step
Action
1
Connect the D.20 link DB9 connector to the JI input on WESTERM
peripheral board number one.
2
Connect the D.20 link DB9 connector out from the J2 connector and into
the J1 connector on WESTERM peripheral board number two.
3
Repeat steps 1 and 2 for each WESTERM peripheral board in series.
Result:
The peripherals are connected for power using the D.20 Link.
Table: J1
pinouts on
WESTERM
Peripherals
The following table gives DB9 Connector pinouts for J1 input on the WESTERM
boards:
Signal Direction
Pin Number
Function
INPUT
OUTPUT
1 GND
2 TX/RX1
√
√
3
TX/RX1
√
√
4 +
DC1
√
5
- DC1
√
6 TX/RX2
√
√
7
TX/RX2
√
√
8 +
DC2
√
9
- DC2
√