Synchronous Controllers - Digital Equipment MicroVAX 3600 Operation

Before using modems with your system, check the following:
1. Make sure each modem is connected to the system.
2. Make sure the modem is properly installed and connected to a phone
jack.
3. Set controls on the modem according to instructions in the modem user's
guide.
Before using the modem connected to the remote terminal, check the
following:
1. Make sure the modem is properly installed and connected to a phone
jack.
2. Set controls on the modem according to instructions in the modem user's
guide.
3. Check the settings on the terminal attached to the modem. Depending
on the type of modem and the type of lines used, the baud rate may be
300, 1200, or 2400. Other settings should be the same as those described
in the previous section.
Before using a line with modem support, you must set certain parameters
such as line speed. See your system software manuals for details.
3.2.2 Synchronous Controllers
The following synchronous controllers are available for the MicroVAX
3600/VAXserver 3600 system:
• DPV 11
• KMV1A
Before using a synchronous controller, you must verify the following:
•
The system you want to communicate with has an appropriate syn-
chronous controller. Synchronous communications require a synchronous
controller on both the transmitting and receiving systems.
•
Both the transmitting and receiving systems must have supporting host
software installed. Synchronous communications operate under specific
protocols that define how data is interpreted. Two common protocols
are X.25 and PSI. Appropriate host software is required to interpret the
protocol.
Using System Options 3-39