Chapter 7 Specifications of the TimeProvider
Inputs
190 TimeProvider User’s Guide 097-58001-02 Revision C – August 2005
Inputs
Front Access and Rear Access shelves contain three card slots: two for IOC cards
and one for an IMC card.
Each IOC supports four input ports: two span inputs, one PRS input, and an optional
GPS input when used with the TimeProvider Roof Antenna system.
Input specifications: 2048 kbit/s G.703/9, 2048 kHz G.703/13, DS1,
1.544/5/10 MHz sine or square
Table 7-3. Input Signal Specifications
Parameter Specification
PRS Inputs
Frequency
Japan Frequency
2.048 MHz, 5 MHz, 10 MHz
1.544 MHz, 6.312 MHz
Amplitude
Japan Amplitude
1 V RMS
±3 dB
–16 dBm to +3 dBm
Termination Impedance 75 Ω
T1 Inputs
Framing D4/SF or ESF (User Selectable)
Bit Rate 1544 Kbit/s
Format AMI or B8ZS (per (ANSI) T1.102 & ITU-T G.703 Sec. 5)
Amplitude Range +3 to –24 dB DSX
Jitter and Wander Tolerance Meets the requirements of Bellcore GR-1244-CORE, Section 4.
E1 Inputs
Type G.703 Sec. 9 Framed E1
Bit Rate 2048 kbit/s
Format CCS (per ITU-TG.703 Sec. 2 & (ANSI) T1.102 DS1A CRC4
enabled/disabled AMI or HDB3)
Amplitude Range +3 to –27 dB DSX
Jitter and Wander Tolerance Meets the requirements of ITU-T G.823
Type G.703 Sec. 9 Framed E1