ShoreTel 90 Voice Switch ShoreTel Voice Switches F
ShoreTel 14 Planning and Installation Guide 389
Status LED
The ShoreTel 90 has one status LED to provide general information about the ports. The color and
blink pattern of the LED indicate the port function:
Status LED (Green)
When on steady, no ports are handling active calls.
When flashing fast, at least one port is handling an active call.
Status LED (Yellow)
When on steady, no ports are handling active calls and at least one port is out of service.
When flashing slow, the switch is not connected (or has lost connection) to a ShoreTel server.
When flashing fast, at least one port is handling an active call and at least one port is out of
service.
Off: No ports are assigned.
ShoreTel 90 Connectors
The ShoreTel 90 voice switch contains the following components:
1 3.5 mm mono connector for audio input (music on hold)
1 3.5 mm mono connector for audio output (overhead paging and night bell)
1 DB-9 female connector for maintenance
2 RJ-45 connectors for the LAN interface
1 RJ-21X male connector for mass termination of the telephone/trunk ports
Power Failure Transfer Unit: Trunk Port 1 to Extension Port 12
Backup Operator: Extension Port 12
ShoreTel 90 RJ-21X Telephone and Trunk Connector
Table 81 lists the RJ-21X Ring and Tip pin numbers for the SG 90.
Table 81: ShoreTel 90 RJ-21X Telephone and Trunk Connector
Port Type Ring Tip
Pin # Cable Color Pin # Cable Color
1 Trunk 1 Blue/White 26 White/Blue
2 Orange/White 27 White/Orange
2 Trunk 3 Green/White 28 White/Green
4 Brown/White 29 White/Brown
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