After you install the adapter (as described in the PRINT370 Adapter manual or CHANNEL-OUT (BT) manual), you need to perform these steps to connect your printers.
For some printers, the printer service representative must connect the cables. Consult your printer manual to determine whether you need to schedule this service.
Connect the PRINT370 or CHANNEL-OUT (BT) adapter to the first S/390 printer (see Figure 3-1) with the supplied CHANNEL-OUT cable (see Figure 3-2). Detailed instructions follow the diagrams.
Figure 3-1. Attach the printer to the PC. If you have only one printer, also attach terminator plugs.
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Plug into adapter |
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Figure 3-2. CHANNEL-OUT cable
One end of the CHANNEL-OUT cable has a single plug. This end connects to the adapter. Insert the cable plug into the connector on the PRINT370 adapter.
If you also have the CHANNEL-IN (ES) adapter for connecting to an SNA host (requires the PRINT/CHANNEL option), be sure to correctly connect the adapters and cables. Connect the CHANNEL-IN cable to the adapter labeled IN. Connect the CHANNEL-OUT cable to the adapter labeled OUT. The IN and OUT adapter labels are visible from the rear of the PC.
The other end of the CHANNEL-OUT cable has separate Bus and Tag plugs that connect to the Bus In and Tag In connectors on the printer.
Attach the Bus plug to the Bus In printer connector.
Attach the Tag plug to the Tag In printer connector.
Use a screwdriver to tighten the screws that secure each connector.
If you connect only one printer, follow the instructions in section 3.3 to attach terminator plugs to the printer.
You can attach up to five more S/390 printers by daisy chaining one printer to another with pairs of bus and tag cables, as shown in Figure 3-3. Daisy-chain cables are available from your printer vendor.
Figure 3-3. You can daisy chain printers with bus and tag cables.
If your bus and tag cables are not long enough to span the distance between two printers, you can extend the cable length by connecting two pairs of bus and tag cables. However, you must correctly connect the cables to each other. Plugs at opposite ends of the cable have different colored edges. Usually the cable has plugs with black edges at one end and plugs with white or gray edges at the other end. Attach plugs of opposite colors, as shown in Figure 3-4.
Figure 3-4. Attach Cable 1’s white Bus plug to Cable 2’s black Bus plug. Attach Cable 3’s white Tag plug to Cable 4’s black Tag plug.
Bus cables have a Bus connector at each end and tag cables have a Tag connector at each end. The connectors are distinguished by color-coded edges. Each cable has one connector with a black edge and one connector with a white or gray edge. When you connect bus and tag cables to printers, be sure to attach connectors of opposite colors.
Connect the printers as follows:
Cable the Bus Out connector on Printer 1 to the Bus In connector on Printer 2.
Attach the bus cable’s black plug to Printer 1’s white Bus Out connector.
Attach the bus cable’s white plug to Printer 2’s black Bus In connector.
Cable the Tag Out connector on Printer 1 to the Tag In connector on Printer 2.
Attach the tag cable’s black plug to Printer 1’s white Tag Out connector.
Attach the bus cable’s white plug Printer 2’s black Tag In connector.
Performance tuning: To maximize performance, put the fastest printers at the end of the chain. For example, put slower impact printers nearest to the adapter, and put faster laser printers farthest from the adapter.
Maximum cable distance: When you daisy chain printers, the total distance from the PC to the last printer must not exceed 60 meters (200 feet). This distance includes the lengths of the cables and the printers.
Finally, connect the bus and tag terminator plugs to the printer. If you connect multiple printers, attach the terminators to the last printer in the chain. Connect the terminators as follows:
Attach the Bus Terminator to the printer’s Bus Out connector.
Attach the Tag Terminator to the printer’s Tag Out connector.
Tighten the terminator screws by hand.