BROOKTROUT TECHNOLOGY, INC.
TRNIC+I24T
Card Type | T1/Fax card |
I/O Options | PEB connector, 15-pin DSX-1 connector, MVIP connector |
Data Bus | 8-bit ISA |

CONNECTIONS | |||
Function | Label | Function | Label |
PEB connector | CN1 | MVIP connector | J401 |
15-pin D-sub DSX-1 connector | J401 | ||
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
| » | Clocking signals generated by T1 | SW501/1 | Off |
Clocking signals generated by TRNIC | SW501/1 | On | |
| » | Super frame mode | SW501/2 | Off |
Extended super frame mode | SW501/2 | On | |
| » | B8ZS line coding | SW501/3 | Off |
AMI line coding | SW501/3 | On | |
| » | Factory configured - do not alter | SW501/7 | Off |
| » | Factory configured - do not alter | SW501/8 | Off |
| » | PEB local bus type | SW502/1 | Off |
MVIP local bus type | SW502/1 | On | |
| » | MVIP clock master set to master | SW502/6 | Off |
MVIP clock master set to slave | SW502/6 | On | |
| » | Loopback mode disabled | SW102 | Off |
Loopback mode enabled | SW102 | On | |
T1 CABLE LENGTH SETTTINGS | |||
Cable Length | SW501/4 | SW501/5 | SW501/6 |
0 to 132 ft. | On | On | On |
133 to 266 ft. | Off | On | On |
267 to 398 ft. | On | Off | On |
399 to 532 ft. | Off | Off | On |
533 to 654 ft. | On | On | Off |
MVIP TERMINATION | ||
Setting | SW502/2 | SW502/3 |
Unterminated | Off | Off |
Terminated | On | On |
MVIP STREAM SELECT | ||
Mode | SW502/4 | SW502/5 |
6/7 | Off | Off |
4/5 | On | Off |
2/3 | Off | On |
0/1 | On | On |
SYNC SOURCE CONTROL | ||
Setting | SW502/6 | SW502/7 |
TRNIC controls | Off | Off |
Secondary net card controls | Off | On |
FRAMING SIGNAL OUTPUT | ||
Setting | SW502/6 | SW502/7 |
Disable output | On | Off |
Enable output | On | On |
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
D1 | Red | On | Card in network loopback mode |
D2 | Red | On | T1 signal lost |
D3 | Yellow | On | Not synchronized on T1 signal |
D4 | Green | On | Operating in normal mode |
FRM | Unidentified | On | T1 framing error |
BPV | Unidentified | On | T1 bipolar violation |
CRC | Unidentified | On | Discrepancy in cyclic redundancy check |