Electrical Requirements - IBM 3164 ASCII Manual

Chapter 6. Physical installation
Electrical requirements
Input power
Main port
6-6
The following chart shows the electrical requ irements for the IBM 3164.
KVA 0.28 max.
Wattage 100 Watts
Phase 1
Frequency
60±0.5 Hz
Amperage 2.3A max.
Voltage 120 Vac
Power Cord Length
2.8 m (9 ft)
Plug Type See "Cables"
The main port is used for communicating with a host line and its operation is
governed by the following setup and host line conditions:
• Interface (RS-232C or RS-422A)
• Programmable line speed (50 - 19,200 bps)
• Inbound/outbound pacing (XOFF/XON)
• Operating mode (echo, character, or block)
• Word length (7 or 8 bits)
• Programmable parity (none/odd/even/mark/space)
• Programmable response timing
• Programmable line turnaround character (ETX/EOT /CRjDC3)
• LRC capability.
If you are using the RS-232C interface, you can communicate with the host
system over the following facilities:
• PRTS (permanent request to send on full duplex communication facility)
• CRTS (controlled request to send on half duplex communication facility)
• iPRTS (induced permanent request to send on full duplex communication
facility) .
The maximum length of the communication (shielded) cable when using this
interface is 12 meters (40 feet).
If you are using the RS-422A interface, you can communicate with the host
system directly, i.e. without modems. The maximum length of the
communication (shielded, twisted, and paired) cable when using this interface
is 1 .2 kilometers (4000 feet).
(