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Master Clock (Time & Frequency Sources) Features
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| Rapco Master Clock Features Chart |
| Model |
2804 |
1804 |
1814 |
| Power |
| Standard |
110/115/120/220/230/240VAC ±10%, 50/60 Hz, IEC connector, and 12/24/48 VDC, 7-pin profDIN connector, front DC on/off switch |
230 VAC (198-268V rms), 50/60 Hz, no on/off switch, IEC connector, +24 VDC on 7-pin profDIN connector, front DC on/off switch |
| Optional |
contact factory |
- 115VAC
- 115/230 VAC switching
- 45 to 440 Hz AC frequency
- Front AC on/off switch
- Rear AC on/off switch
- +12 VDC
- Rear DC on/off switch
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| Frequency Outputs |
| Standard |
4x sine plus 2x TTL from main PCB (+10 dBm, factory adjustable +7 to +13, plus TTL 50 ohm drive) |
3x sine plus 1x TTL from main PCB (+10 dBm, adjustable +7 to +13, plus TTL 50 ohm drive) |
n/a |
| Optional |
- additional 5x
- additional 5x at 1/2F
- 1x at pre-set ratio of F
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- 1 only sine
- 4x sine from main PCB
- 4x RS-422 15-way D conn (cabled)
- 9x sine
- 8x sine plus 1x TTL
- Reference (oscillator) frequency divided by integer from 1 to 100, TTL 50 ohm drive(mutually exclusive with other options)
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n/a |
| Timing Outputs |
| Standard |
2x 1 Hz TTL (BNC 50 ohm drive) |
1x 1 Hz TTL (BNC 50 ohm drive) |
| Optional |
5x 1 Hz TTL |
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| Reference Frequency Fixed |
| Standard |
10 MHz oscillator |
n/a |
| Optional |
- 5 MHz oscillator at no extra cost
- 10 MHz and 5 Mhz oscillator + fx sine buffer
- Special oscillator, 12.8 MHz, 8.192 MHz, etc. (long lead times, up to 16 weeks, may apply)
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n/a |
| Special Frequency, Synthesiser Outputs |
| Optional |
- 10kHz to 5.00MHz, 10 milliHertz resolution, from standard synthesizer PCB, 2x sine (+10 dBm adjustable +7 to +13), 1x TTL (50 ohm drive), 1x RS-422 on BNO connector
- 10 kHz to 10.7 MHz, same as above
- E1 per G703.10, from telecom synthesiser PCB assy, 3 x ITU G703.10 (75ohm Co-axial pair outputs) at 2.048MHz E1
- T1 at 1.544 MHz, same as above
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n/a |
| External Reference Input Frequency (in case of GPS loss) |
| Optional |
contact factory |
E1, T1, 10MHz or 5MHz (ITU or sine or TTL level) |
n/a |
| Time Code Outputs |
| Standard |
- 2x of 1 of 4 codes (IRIG-A, IRIG-B, XR3, 2137), user-select via RS-232
- Date/time broadcase via RS-422(remote displays) via profDIN option D type
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1x of 1 of 4 codes (IRIG-A, IRIG-B, XR3, 2137), user-select via RS-232 |
none |
| Optional |
- 4x of 1 of 4 codes
- Special code e.g. SMPTE longitudinal (factory fit)
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- 2x of 1 of 4 codes
- Special code e.g. SMPTE longitudinal (factory fit)
- Date/time broadcase via RS-422(remote displays) via profDIN option D type
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| Control Port |
| Standard |
Rapco protocol via RS-232, terminal (broadcast) and remote (control) modes |
| Optional |
Contact factory |
- 2nd control port (RS-232), same protocol
- 2nd control port (RS-422), same protocol
- Special control port (RS-232 or 422) user-specified protocol
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| Mechanical |
| Optional |
- TNC connectors replacing BNC in some panel locations
- Monitor outputs (time/frequency) front panel connectors
- Rack-slide fixing points (tapped holes on each side)
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| Reference Oscillator Type |
| Standard |
Hi-spec, single-oven, SC OCXO (fast warm-up) ref: 665SC |
TCXO ref GTXO-530V |
| Optional |
Rubidium atomic ref: LPRO/LPFRS |
- Ultra-Hi-spec, single-oven, SC OCXO (lowest drift and phase-noise) ref: 760SC
- Rubidium atomic ref: LPRO/LPFRS
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- Single-oven SC OCXO (low cost), ref: 360SC
- Hi-spec, single-oven, SC OCXO (low drift and phase-noise) ref: 660SC
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| Rapco Master Clock Features Chart |
| Model |
2804 |
1804 |
1814 |
| Power |
| Standard |
110/115/120/220/230/240VAC ±10%, 50/60 Hz, IEC connector, and 12/24/48 VDC, 7-pin profDIN connector, front DC on/off switch |
230 VAC (198-268V rms), 50/60 Hz, no on/off switch, IEC connector, +24 VDC on 7-pin profDIN connector, front DC on/off switch |
| Optional |
contact factory |
- 115VAC
- 115/230 VAC switching
- 45 to 440 Hz AC frequency
- Front AC on/off switch
- Rear AC on/off switch
- +12 VDC
- Rear DC on/off switch
|
| Frequency Outputs |
| Standard |
4x sine plus 2x TTL from main PCB (+10 dBm, factory adjustable +7 to +13, plus TTL 50 ohm drive) |
3x sine plus 1x TTL from main PCB (+10 dBm, adjustable +7 to +13, plus TTL 50 ohm drive) |
n/a |
| Optional |
- additional 5x
- additional 5x at 1/2F
- 1x at pre-set ratio of F
|
- 1 only sine
- 4x sine from main PCB
- 4x RS-422 15-way D conn (cabled)
- 9x sine
- 8x sine plus 1x TTL
- Reference (oscillator) frequency divided by integer from 1 to 100, TTL 50 ohm drive(mutually exclusive with other options)
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n/a |
| Timing Outputs |
| Standard |
2x 1 Hz TTL (BNC 50 ohm drive) |
1x 1 Hz TTL (BNC 50 ohm drive) |
| Optional |
5x 1 Hz TTL |
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| Reference Frequency Fixed |
| Standard |
10 MHz oscillator |
n/a |
| Optional |
- 5 MHz oscillator at no extra cost
- 10 MHz and 5 Mhz oscillator + fx sine buffer
- Special oscillator, 12.8 MHz, 8.192 MHz, etc. (long lead times, up to 16 weeks, may apply)
|
n/a |
| Special Frequency, Synthesiser Outputs |
| Optional |
- 10kHz to 5.00MHz, 10 milliHertz resolution, from standard synthesizer PCB, 2x sine (+10 dBm adjustable +7 to +13), 1x TTL (50 ohm drive), 1x RS-422 on BNO connector
- 10 kHz to 10.7 MHz, same as above
- E1 per G703.10, from telecom synthesiser PCB assy, 3 x ITU G703.10 (75ohm Co-axial pair outputs) at 2.048MHz E1
- T1 at 1.544 MHz, same as above
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n/a |
| External Reference Input Frequency (in case of GPS loss) |
| Optional |
contact factory |
E1, T1, 10MHz or 5MHz (ITU or sine or TTL level) |
n/a |
| Time Code Outputs |
| Standard |
- 2x of 1 of 4 codes (IRIG-A, IRIG-B, XR3, 2137), user-select via RS-232
- Date/time broadcase via RS-422(remote displays) via profDIN option D type
|
1x of 1 of 4 codes (IRIG-A, IRIG-B, XR3, 2137), user-select via RS-232 |
none |
| Optional |
- 4x of 1 of 4 codes
- Special code e.g. SMPTE longitudinal (factory fit)
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- 2x of 1 of 4 codes
- Special code e.g. SMPTE longitudinal (factory fit)
- Date/time broadcase via RS-422(remote displays) via profDIN option D type
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| Control Port |
| Standard |
Rapco protocol via RS-232, terminal (broadcast) and remote (control) modes |
| Optional |
Contact factory |
- 2nd control port (RS-232), same protocol
- 2nd control port (RS-422), same protocol
- Special control port (RS-232 or 422) user-specified protocol
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| Mechanical |
| Optional |
- TNC connectors replacing BNC in some panel locations
- Monitor outputs (time/frequency) front panel connectors
- Rack-slide fixing points (tapped holes on each side)
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| Reference Oscillator Type |
| Standard |
Hi-spec, single-oven, SC OCXO (fast warm-up) ref: 665SC |
TCXO ref GTXO-530V |
| Optional |
Rubidium atomic ref: LPRO/LPFRS |
- Ultra-Hi-spec, single-oven, SC OCXO (lowest drift and phase-noise) ref: 760SC
- Rubidium atomic ref: LPRO/LPFRS
|
- Single-oven SC OCXO (low cost), ref: 360SC
- Hi-spec, single-oven, SC OCXO (low drift and phase-noise) ref: 660SC
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