ADCP-75-210 • Issue 1 • March 2007
Page 15
© 2007, ADC Telecommunications, Inc.
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Figure 10. System Interface Module Faceplate
1.7.4 Synchronous Interface (SIF) Module
The Synchronous Interface (SIF) Module provides the optical interface between the Hub and
the RAN. This interface provides for exchange of digitized RF signal information and 10BaseT
Ethernet command and control information. Each RAN can have up to two SIFs, each handling
two bands with diversity receive paths.
11 HS Single-color LED
(blue)
Not used
12 PWR Single-color LED
(green)
Power. Indicator turns green when module has power
13 I2C A-D RJ-45 connectors I2C (Bus). Connectors to I2C buses
14 ANT SMA connector Antenna. Input for GPS antenna signal
15 TLA RJ-45 connector Tower Light Alarm (unused)
Table 6. System Interface Module Faceplate Components
REF # DESIGNATION DEVICE FUNCTIONAL DESCRIPTION
21253-A
GPS
LED
RESET
SWITCH
STATUS
LED 1
4
15
1
2
STATUS
LED 2
TOWER LIGHT
ALARM CONNECTOR
DOOR ALARM
CONNECTOR
I2C
CONNECTOR
I2C COMM LED
3
5
GPS COMMS
CONNECTOR
6
RECTIFIER
COMMS
CONNECTOR
7
8
POWER LED
12
FAULT LED
10
HOT SWAP LED
11
I2C ERROR LED
9
14
13
GPS ANTENNA
CONNECTOR
(RAN ONLY)
