Auxiliary connector outputs (MCC1 and SCC1 Media Gateways only)
Auxiliary connector outputs (MCC1 and SCC1 Media Gateways only)
Connect a 25-pair cable from the AUX connector on the back of the expansion control carrier to a connecting block on the trunk/auxiliary field.
Table 11: Auxiliary lead appearances at AUX connector on page 81 shows the:
●control carrier outputs cable pinouts
●pinouts for an external alarm
●port circuit pack and telephone pin designations The control carrier AUX connector outputs include:
●Two inputs for external alarm signals
●Seven -48 VDC power sources for emergency transfer units
●Three -48 VDC power sources for remotely powering three attendant consoles or telephone adjuncts
●A relay contact that actuates a customer-supplied light, bell, or similar device. The relay can activate when a major, minor, or warning condition occurs. The device connected to the alarm leads must not exceed a rating of 30Vac RMS or 60Vdc max, at 0.75A max. The customer provided alarm circuit must also meet the requirements for an SELV (Safety extra-low voltage) circuit; the alarm circuit power source must be a power supply or transformer meeting the UL 60950 SELV, Level 3, or Level 5 requirements.
Table 11: Auxiliary lead appearances at AUX connector
Color* | Pinouts | Output | Power |
W-BL | 26 | Major† | |
BL-W | 1 | | |
| | | |
W-O | 27 | Minor† | |
O-W | 2 | | |
| | | |
W-G | 28 | GRD | |
G-W | 3 | |
| | | |
W-BR | 29 | GRD | |
BR-W | 4 | |
| | | |
W-S | 30 | GRD | |
S-W | 5 | |
| | | |
R-BL | 31 | GRD | |
BL-R | 6 | |
| | | |
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