Hardware Overview
025-9416
29
PARALLEL PRINTER CARD
The parallel printer option (Part No. 950-9758) enables the Model 640 to print the system log
data in real-time. When the printer card is installed in either expansion slot (items #9 and #10,
Figure 2), a printer can be connected to the DB-25 that is exposed through the rear of the chassis.
Any standard serial printer cable works.
DUAL DIAL CLICK CARD
The dual dial click decoder option (Part No. 702-9119) enables the Model 640 to process digits
dialed by rotary telephones. Dial clicks are different from dial pulses. The Model 640 can decode
dial pulses without the optional dial click decoder board.
DUAL MF DECODER CARD
The dual multifrequency decoder option (Part No. 702-9197) allows the Model 640 to accept MF
digit feed from DID and E&M 2- or 4-wire trunks. MF is a dual-tone signaling format similar to
standard touch-tone (DTMF).
FRONT PANEL LEDS
The Model 640 has 18 red LEDs on its front panel. Many of the LEDs serve the same function,
but for different trunks. Refer to Figure 7 for the location of each LED. Table 5 describes the
operation of each LED.
Note:
The Model 640 has four LINE, ANS, and ACT LEDs - each trunk has its own set. They
operate identically for each trunk.
Содержание 640 DAPT XTRA
Страница 2: ......
Страница 6: ...Statements vi 025 9416...
Страница 20: ...Introduction 8 025 9416...
Страница 26: ...Specifications 14 025 9416...
Страница 96: ...Installation 84 025 9416...
Страница 126: ...Optional Equipment Installation 114 025 9416...
Страница 134: ...Voice Prompts 122 025 9416...
Страница 174: ...Parts Lists and Schematics 162 025 9416 Schematic...
Страница 175: ...Parts Lists and Schematics 025 9416 163...
Страница 176: ...Parts Lists and Schematics 164 025 9416...
Страница 177: ...Parts Lists and Schematics 025 9416 165...
Страница 178: ...Parts Lists and Schematics 166 025 9416...
Страница 179: ...Parts Lists and Schematics 025 9416 167...
Страница 180: ...Parts Lists and Schematics 168 025 9416...
Страница 181: ...Parts Lists and Schematics 025 9416 169...
Страница 182: ...Parts Lists and Schematics 170 025 9416 Silkscreen...
Страница 185: ...Parts Lists and Schematics 025 9416 173 Schematic...
Страница 186: ...Parts Lists and Schematics 174 025 9416...
Страница 187: ...Parts Lists and Schematics 025 9416 175...
Страница 188: ...Parts Lists and Schematics 176 025 9416...
Страница 189: ...Parts Lists and Schematics 025 9416 177...
Страница 190: ...Parts Lists and Schematics 178 025 9416 Silkscreen...
Страница 193: ...Parts Lists and Schematics 025 9416 181 Schematic...
Страница 194: ...Parts Lists and Schematics 182 025 9416...
Страница 195: ...Parts Lists and Schematics 025 9416 183...
Страница 196: ...Parts Lists and Schematics 184 025 9416 Silkscreen...
Страница 197: ...Parts Lists and Schematics 025 9416 185 COMPONENT LOCATIONS Dual Dial Click 702 9119C Dual MF 702 9197D 1...
Страница 198: ...Parts Lists and Schematics 186 025 9416 RAM Disk 702 9386B ROM Disk 702 9389B...
Страница 199: ...Parts Lists and Schematics 025 9416 187 TNPP Interface 702 9362C 2...
Страница 200: ...Parts Lists and Schematics 188 025 9416 Terminal Block Adapter 702 9470B...
Страница 201: ...Parts Lists and Schematics 025 9416 189 CONFIGURATION DIAGRAMS Dual Trunk Telco DID 024 0076A...
Страница 202: ...Parts Lists and Schematics 190 025 9416 Dual Trunk Telco End to End 024 0077A...
Страница 203: ...Parts Lists and Schematics 025 9416 191 Dual Trunk Telco E M 024 0078A...
Страница 204: ...Parts Lists and Schematics 192 025 9416 Dual Trunk Telco Ground Start 024 0079A...
Страница 210: ...025 9416...