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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
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
Auxiliary connector outputs (MCC1 and SCC1 Media Gateways only)
*
Color
Pinouts
W-BL
26
BL-W
1
W-O
27
O-W
2
W-G
28
G-W
3
W-BR
29
BR-W
4
W-S
30
S-W
5
R-BL
31
BL-R
6
on page 81 shows the:
Output
†
Major
†
Minor
GRD
GRD
GRD
GRD
Power
1 of 3
Issue 3 January 2008
81
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