Specifications for AT20 family
DISPLAY SIZE AND TYPE
Characters per line – 20
Character type 5×7 Vacuum fluorescent display
Upper/lower case letters – Yes
| Model | Description | Char size (HxW) | With Mounting Frame Size 10.25″x4.25″ (Mounting holes on mounting panel) | No mounting Frame – Cut out dimension |
| AT209 | 1 line x 20 characters | 9mm x 5mm | 9.75″ x 3.75″ | 9.3″x3.3″ |
| AT229 | 2 line x 20 characters | 9mm x 5mm | 9.75″ x 3.75″ | 9.3″x3.3″ |
| AT245 | 4 line x 20 characters | 5mm x 3.3mm | 9.75″ x 3.75″ | 9.3″x3.3″ |
MESSAGE MEMORY & TRIGGERING
Memory size 2K,8K or 32K
Memory type 2K,8K EEPROM, 32K Nonvolatile ram
Parallel triggering BCD or BINARY programmable
Serial Triggering ;- Yes, programmable
Message control – Blinking and Intensity, programmable
Number of messages – 99, upgradable to 225
PHYSICAL
Operating temperature -10°C to 60°C
Humidity 10 – 95% (non-condensing)
Weight – 1 ¼ Lbs
Mounting panel size – 10.25″ x 4.25″
Mounting holes – 9.750″ x 3.750″
How to Order:
| Number of lines; char height in mm | P – Parallel triggering S – Serial ST – Serial triggering | SI – Sink SO – Source | F – Frame mount M–Cut out mount | ||||
| 20 | 19 | – | P | – | SI | – | M |
| 20 | 29 | – | S | – | 50 | – | F |
| 20 | 45 | – | ST | ||||
Examples:
To order a 1 line 20 chars display utilized as parallel trigger (P) and a Sink configuration (SI) then use part number:
2019-P-SI-F
To order a 1 line 20 chars display utilized as serial trigger (ST) and a Sink configuration (SI) then use part number:
2019-ST-F
Glossary:
SI is for Sink mode of operation. When all Positives are connected as common.
SO is for Source of operation. When all Negatives are connected as common.
The use of Source or Sink mode helps reducing the number of electrical connections.