Texas Instruments 990 User Manual page 77

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946289-9701
APPENDIX A
EMllLA TOR HARDWARE REQUIREMENTS
The Emulator runs with the DX JO standard equipment configuration plus communication
equipment as follows:
• A model 990 I 0 computer with:
64K words of memory (minimum)
System disk
System console (VDT or ASR/ KSR data terminal)
Means of disk backup
• One of the following communication interface sets:
Communication interface module (946104-000 I), synchronous modem (945094-
0003). and optional auto-call unit (945163-0001 ).
Communication interface module and cable for non-TI modems (946104-0002) and
optional auto-call unit for non-TI modems (2263480-0001). Tandem dialing is not
supported for the auto-call unit used with non-TI modems.
The supported non-TI modems are the Bell data sets listed. Following each modem is a list of the
optiors recommended. An asterisk beside an option indicates that the option is required for use with
the Emulator.
• 20 J A switched-line modem (2000 bps)
*Internal timing
Without . . new sync
*EIA option
*Without ACU
Alternate voice
Selective unattended answer
Half-duplex operation
Carrier controlled by request to send
• 201B leased-line modem (2400 bps)
*Internal timing
*Without new sync
*EIA option
• 201C switched-line or leased-line modem (2400 bps)
Switched network options:
*Internal timing (supplied by data set)
*EIA voltage for CD and ROY
A·l
Digital Systems Group