4.0 INSTALLATION
This section describes how to connect each Model 305X to the RS-
232 or RS-422 sub-channel devices, to another Model 305X over the main channel, and to the power supply.
4.1 .2 SUB-CHANNEL CONNECTIONS
The RJ-45 female sub-channel ports on the back of the Model 3054, 3056, and 3058 are labeled 1 - 4 (Model 3054), 1 - 6 (Model 3056) and 1 - 8 (Model 3058). Each sub-channel port designates single communication path from the local multiplexer to the remote multiplexer. That is, the serial device connected to port 1 on the local multiplexer will communicate with the serial device that is connected to port 1 on the remote multiplexer. Figure 3 shows the port connections on the rear of the Model 3058.
Sub-Channels
Main Channel
Power Jack
CHANNELS
Figure 3: Model 3058 Port Connections
4.1.1 RS-232 Sub-Channel Connections
The Model 305X Series multiplex and de-multiplex data signals from four, six, or eight EIA-232 DTE (terminals, PCs) DCE (modems) devices. Most DTE and DCE devices use a D-Sub 25 or D-Sub 9 connector to transmit and receive data as well as operate flow control. Since the sub-channel ports on the Model 305X Series are modular RJ- 45 jacks, you will need an adapter cable to make the proper connections.. Figure 4, below, shows the pin assignments on the RJ- 45 sub-channel modular jack.
| | 1 no connection |
| 1 | 2 no connection |
| 3 no connection |
| 2 |
| 3 | 4 (SG) |
| 4 | |
55 (TX Data) from 305X
6 | 6 | (RX Data) to 305X |
7 |
8 | 7 | (RTS) from 305X* |
| 8 | (CTS) to 305X* |
Figure 4: Model 305X RJ-45 Sub-Channel Pin Numbers
*NOTE: Hardware flow control signals are available only on RS-232 Versions of Models 3054AR and 3056AR (See Section 4.2.4 Flow Control Requirements).
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Every RS-232 serial device connected to a Model 305X Series unit sub-channel must have a special interface cable. On one end, this interface cable must have an RJ-45 male plug; on the other end, the cable must have a connector that adapts to your RS-232 serial device. The diagrams below show pin connections between the Model 305X sub-channels and common RS-232 interfaces. You may use these diagrams to construct your own cables, or you may purchase cables from Patton Electronics.
RS-232 (PC-XT or other DTE) | Model 3054 or 3056 |
DB-25 Pin No. | | RJ-45 Pin No. |
7 | (SG) | | | | | | | | 4 | (SG) |
| | | | | | |
3 | (RCV) | | | | | | 5 | (XMT) |
| | | | |
2 | (XMT) | | | | 6 | (RCV) |
| | |
4 | (RTS) | | | | 8 | (CTS)* |
| | |
5 | (CTS) | | | 7 | (RTS)* |
| |
6(DSR)
8(DCD)
20(DTR)
RS-232 (Modem or other DCE) | Model 3054 or 3056 |
DB-25 Pin No. | | RJ-45 Pin No. |
7 | (SG) | | | | | | | 4 | (SG) |
| | | | | |
3 | (XMT) | | | | | 5 | (XMT) |
| | | |
2 | (RCV) | | | | 6 | (RCV) |
| | |
5 | (CTS) | | | | 8 | (CTS)* |
| | |
4 | (RTS) | | | 7 | (RTS)* |
| |
6(DSR)
8(DCD)
20(DTR)
RS-232 (PC-AT or other DTE) | Model 3054/3056/3058 (DCE) |
DB-9 Pin No. | | RJ-45 Pin No. |
5 | (SG) | | | | | | | 4 | (SG) |
| | | | | |
2 | (RCV) | | | | | 6 | (XMT) |
| | | |
3 | (XMT) | | | | 5 | (RCV) |
| | |
7 | (RTS) | | | | 8 | (RTS)* |
| | |
8 | (CTS) | | | 7 | (CTS)* |
| |
1(DSR)
4(DCD)
6(DTR)
*NOTE: Hardware flow control signals available only on Models 3054/AR and 3056/AR (See Section 4.2.4 Flow Control Requirements).
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