Chapter 2 – Installation
Electrical Specifications
Power Consumption Typical: 155 mA (.945 W @ 9V DC) 180 mA maximum 155 mA @ 6V DC
96 mA @ 10V DC
68 mA @ 15V DC
54 mA @ 20V DC
38 mA @ 30V DC
30 mA @ 40V DC
26 mA @ 48V DC
Power Requirements 6V DC +/- 5% to 48V DC +/- 10%
LED Indicators
| LED | Description |
TD | Transmit Data. This LED is lit when modem is transmitting data to another modem. |
RD | Receive Data. This LED is lit when the modem receiving data from another modem. |
CD | Carrier Detect. This LED is lit when the modem detects a valid carrier signal from another modem. It is |
| on when the modem is communicating with the other modem and off when the link is broken. |
TR | Terminal Ready. (Also called Data Terminal Ready.) This LED indicates the PC is turned on and ready |
| to communicate. This LED is lit when a data communications program initializes the modem. It goes |
| off when the communications program disconnects the COM port. When is goes off, a connected |
| modem will disconnect. |
PWR | Power. This LED Indicates the presence of DC power when lit. |
RS-232 9-Pin Connector
| Pin | Description |
1 | DCD |
2 | RX Data |
3 | TX Data |
4 | DTR |
5 | Ground |
6 | DSR |
7 | RTS |
8 | CTS |
9 | RI |
7 |