ALPHA MICROSYSTEMS
AM-338, AM-339 RJE BOARD SET
| 
 Processor  | 
 Z-80  | 
| 
 Processor Speed  | 
 4MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Video Chip Set  | 
 None  | 
| 
 Maximum Onboard Memory  | 
 None  | 
| 
 Maximum Video Memory  | 
 None  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 Dimensions  | 
 Unidentified  | 
| 
 I/O Options  | 
 Debug/trace port, synchronous communication port  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Debug/trace port  | 
 CN1  | 
 AM-338 board connector  | 
 J1  | 
| 
 Synchronous communication port  | 
 CN2  | ||
| 
 DTE/DCE CONFIGURATION  | |
| 
 Setting  | 
 W1  | 
| 
 DTE  | 
 1 & 2, 5 & 6, 9 & 10 13 & 14, 18 & 19, 21 & 22, 23 & 24, 25 & 26  | 
| 
 DCE  | 
 3 & 4, 7 & 8, 11 & 12, 15 & 16, 19 & 20, 21 & 22, 23 & 24, 25 & 26  | 
| 
 DCE (test mode)  | 
 3 & 4, 7 & 8, 11 & 12, 15 & 16, 19 & 20, 21 & 22, 23 & 25, 27 & 28  | 
| 
 Note: Pins designated should be in the closed position.  | |
| 
 CONNECTIONS  | |
| 
 Purpose  | 
 Location  | 
| 
 AM-339 board connector  | 
 J1  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 »  | 
 Factory configured - do not alter  | 
 W1  | 
 Pins 5 & 6 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 W2  | 
 Closed  | 
| 
 MISCELLANEOUS TECHNICAL NOTE  | 
| 
 These boards provide a bisync interface for the Alpha Micro AM-1600 (Desktop and Deskside) allowing an interface between IBM mainframes when used with AlphaRJE software.  |