ADC DSCSMR2P Users Manual

6 SPECIFICATIONS

Refer to the following tables for the system, host unit, and remote unit specifications. All specifications apply after a five minute warm-up period.

Tab le 2-5 – SCS 800/900 MHz SMR system nominal specifications

Tab le 2-6 – SCS 800 MHz system nominal specifications

Tab le 2-7 – SCS 1900 MHz system nominal specifications

Tab le 2-8 – Host Unit nominal specifications

Tab le 2-9 – WDM nominal specifications

Tab le 2-1 0 – Remote Unit nominal specifications

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Page 2-19

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Table 2-5. SCS 800/900 MHz SMR System Nominal Specifications

PARAMETER SPECIFICATION REMARKS

Optical - Host and Remote Unit

Fiber type 9/125, single-mode

Number of fibers required 1 for single-band remote unit

2 for dual-band RU

Forward path wavelength 1550 nm

Reverse path wavelength 1310 nm

Optical transmit power output Host Unit Remote Unit

0 dBm +1.3 dBm (includes WDM insertion loss)

Optical budget 25 dB

Optical Receiver Input Maximum –15 dBm

Optical connectors UPC/SC Host unit

OptiTap APC/SC Remote unit

RF Forward Path - 800/900 MHz

System bandwidth 18 MHz

5 MHz

Frequency range 851–869 MHz

935–940 MHz

Gain of forward path

78.1 dB (typical) At band center, room tempera(Host input to Remote primary antenna port)

Gain flatness Band flatness Channel flatness

± 2.0 dB across freq. range ± 1.5 dB variation across any

1.25 MHz channel

All SCS remote units include a WDM.

For optical BER of 10

–6

800 MHz transmit 900 MHz transmit

ture, and 0 dB attenuation setting. Includes power amplifier.

Gain variation ± 3 dB over temp and unit-to-

Propagation delay < 6 μs (typical) Excludes fiber delay

Configurable propagation delay Range Step size

Spurious In-band self generated Dynamic range (noise floor)

Transmit peak-to-average >

Two-tone Intermodulation <

Nominal composite RF input signal level

Configurable input level Range Step size

Page 2-20

unit

Plus standard propagation delay

0 to 63 μs

0.1μs ± 100 ns

<–13 dBm at remote output <–60 dBc at 30 KHz bandwidth

10 dB

–52 dBc two tones @ 5 Watts each

–40 dBm at 0 dB attenuation –9 dBm at max. attenuation

–20 dBm is the optimal RF input signal level.

31 dB 1 ± 0.5 dB ±10% of attenuation monotonic

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Table 2-5. SCS 800/900 MHz SMR System Nominal Specifications, continued

PARAMETER SPECIFICATION REMARKS

Composite RF Output power of both bands (see Note 1at end of table)

38.1 dBm (6.5 Watts) at remote antenna port with –40 dBm input

10 Watts at LPA output

Configurable RF Output Range Step size

31 dB at remote unit 1 ± 0.5 dB ± 10% of attenuation monotonic

Transmit path insertion loss 1.9 dB typical

RF Reverse Path - 800/900 MHz

System bandwidth 18 MHz

5 MHz

800 MHz receive 900 MHz receive

Frequency range 806–824 MHz

896–901 MHz

Propagation delay < 8 μs (typical) Excludes fiber delay

Configurable propagation delay Range Step size

Up to 63 μs

0.1μs ±1 100 ns

Plus standard propagation delay

Gain of reverse path Overall gain

30 ± 2 dB at band center at room temperature

Gain variation

3 dB over temperature

Gain flatness Band flatness Channel flatness

± 2.0 dB across frequency range ± 1.5 dB variation across any

1.25 MHz channel

Out-of-band rejection –40 dB at >

12.5 MHz from cen-

ter of subband

Spurious (in-band self gener-

–110 dBm referred to input

ated)

Intermodulation –62 dBc two tones @ –50 dBm

System noise figure 9 dB at mid-band

Configurable RF output Range Step size

31 dB 1 ± 0.5 dB ± 10% of attenuation monotonic

Blocking dynamic range 70 dB

Level limiting ALC threshold –40 dBm ± 3 dB instantaneous

Level limiting ALC range 27 dB

Note: Per Industry Canada Section 5.3 - The rated output power of this equipment is for single carrier operation. For situations where multiple carrier signals are present, the rating would have to be reduced by 3.5 dB, especially where the output signal is re-radiated and can cause interference to adjacent band users. This power reduction is to be by means of input power or gain reduction and not by an attenuator at the output of the device.

Page 2-21

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Table 2-6. SCS 800 MHz System Nominal Specifications

PARAMETER SPECIFICATION REMARKS

Optical - Host and Remote Unit

Fiber type 9/125, single-mode

Number of fibers required 1 for single-band remote unit

2 for dual-band RU

Forward path wavelength 1550 nm

Reverse path wavelength 1310 nm

Optical transmit power output Host Unit Remote Unit

0 dBm +1.3 dBm (includes WDM insertion loss)

Optical budget 25 dB

Optical Receive Input Maximum –15 dBm

Optical connectors UPC/SC Host unit

OptiTap APC/SC Remote unit

RF Forward Path - 800 MHz

System bandwidth A band B band

11 and 1.5 MHz 10 and 2.5 MHz

Frequency range A band B band

869–880 and 890–891.5 MHz 880–890 and 891.5–894 MHz

Out-of-band emissions Primary –13 dBm per 1 MHz bandwidth

from 10 kHz to 20 GHz

All SCS remote units include a WDM.

For optical BER of 10

–6

Gain of forward path (Host input to Remote primary antenna port)

Gain flatness Band flatness Channel flatness

Gain variation ± 3 dB over temp and unit-to-

Out-of-band rejection –40 dB at >

Propagation delay < 6 μs (typical) Excludes fiber delay

Configurable propagation delay Range Step size

Spurious In-band self generated Free dynamic range

Transmit peak-to-average >

Page 2-22

78.5 dB (typical) At band center, room tempera-

ture, and 0 dB attenuation setting. Includes power amplifier.

± 2.0 dB across freq. range ± 1 dB variation across any 1.25

MHz channel

unit

±17.5 MHz from

center of subband

Plus standard propagation delay

Up to 63 μs

0.1μs ± 100 ns

<–13 dBm at remote output <–60 dBc at 30 kHz bandwidth

10 dB

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Table 2-6. SCS 800 MHz System Nominal Specifications, continued

PARAMETER SPECIFICATION REMARKS

Two-tone Intermodulation <–55 dBc at remote output Two tones @ 5 Watts each

CDMA Intermodulation 885 kHz to 1.25 MHz

1.25 to 1.98 MHz

1.98 to 2.25 MHz

–45 dBc per 30 kHz –8 dBm per 30 kHz –55 dBc per 30 kHz

Absolute level

Nominal composite RF input signal level

–40 dBm at 0 dB attenuation –9 dBm at max. attenuation

An input signal level of –40 dBm provides maximum output power

Configurable input level Range Step size

31 dB 1 ± 0.5 dB ±10% of attenuation monotonic

Composite RF Output power (see Note 1at end of table)

38.5 dBm (7.0 Watts) at remote antenna port with –40 dBm input

10 Watts at LPA output

Configurable RF Output Range Step size

31 dB at remote unit 1 ±0.5 dB ±10% of attenuation monotonic

Transmit path insertion loss 2.5 dB maximum

RF Reverse Path - 800 MHz

System bandwidth A band B band

11 and 1.5 MHz 10 and 2.5 MHz

Frequency range A band B band

824–835 and 845–846.5 MHz 835–845 and 846.5–849 MHz

Propagation delay 6 μs Excludes fiber delay

Configurable propagation delay Range Step size

Up to 63 μs

0.1μs ±1 100 ns

Plus standard propagation delay

Gain flatness Band flatness Channel flatness

1.5 dB across frequency range ±1 dB variation across any 1.25

MHz channel

Gain of reverse path Overall gain

30 ± 2 dB at band center at room

ALC not invoked

temperature

Gain variation

Out-of-band rejection –40 dB at >

3 dB over temperature

±17.5 MHz from

ALC not invoked

center of subband

Spurious (in-band self gener-

–110 dBm referred to input ALC not invoked

ated)

Intermodulation –62 dBc two tones at –50 dBm

System noise figure 8 dB at mid-band ALC not invoked

Page 2-23

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Table 2-6. SCS 800 MHz System Nominal Specifications, continued

PARAMETER SPECIFICATION REMARKS

Configurable RF output Range Step size

31 dB 1 ± 0.5 dB ± 10% of attenuation monotonic

Blocking dynamic range 70 dB

Level limiting ALC threshold –40 dBm ± 3 dB instantaneous

Level limiting ALC range 30 dB

RF Forward and Reverse Path Modulation Accuracy

Service/Mod Type/Parameter TDMA/n/4-DQSK/rms EVM

GSM/GMSK/rms phase error EDGE/8PSK/rms EVM EIA-97D/CDMA/rho factor

7% 4º 7% .97%

Note: Per Industry Canada Section 5.3 - The rated output power of this equipment is for single carrier operation. For situations where multiple carrier signals are present, the rating would have to be reduced by 3.5 dB, especially where the output signal is re-radiated and can cause interference to adjacent band users. This power reduction is to be by means of input power or gain reduction and not by an attenuator at the output of the device.

Page 2-24

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Table 2-7. SCS 1900 MHz System Nominal Specifications

PARAMETER SPECIFICATION REMARKS

Optical - Host and Remote Unit

Fiber type 9/125, single-mode

Number of fibers required 1 for single-band remote unit

2 for dual-band RU

Forward path wavelength 1550 nm

Reverse path wavelength 1310 nm

Optical transmit power output Host Unit Remote Unit

0 dBm +1.3 dBm (includes WDM insertion loss)

Optical budget 25 dB

Optical Receive Input –15 dBm

Optical connectors Host Unit Remote Unit

UPC/SC Host unit OptiTap APC/SC Remote unit

RF Forward Path - 1900 MHz

System Bandwidth 20 MHz AD band, 25 MHz

DBE, BEF, and EFC bands.

Frequency range AD DBE

BEF EFC

1930 to 1950 MHz 1945 to 1970 MHz 1950 to 1975 MHz 1965 to 1990 MHz

All SCS remote units include a WDM.

For optical BER of 10

–6

Out-of-band emissions (Primary)

Gain of forward path (Host input to Remote primary antenna port)

–13 dBm per 1 MHz bandwidth from 10 kHz to 20 GHz

77.7 dB (typical) At band center, room temperature, and 0 dB attenuation setting. Includes power amplifier.

Gain flatness Band flatness Channel flatness

± 1.5 dB across freq. range ± 1 dB variation across any 1.25 MHz channel

Gain variation ± 3 dB over temp and unit-to-

unit

Out-of-band rejection –40 dB at >

±17.5 MHz from

center of subband

Propagation delay < 2.5 μs Excludes fiber delay

Configurable propagation delay Range Step size

Up to 63 μs

0.1μs ± 100 ns

Plus standard propagation delay

Page 2-25

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Table 2-7. SCS 1900 MHz System Nominal Specifications, continued

PARAMETER SPECIFICATION REMARKS

Spurious In-band self generated Free dynamic range

–13 dBm at remote output 60 dB at 30 kHz bandwidth

Transmit peak-to-average 10 dB

Two-tone Intermodulation –55 dBc at remote output two tones at 5 Watts each

CDMA Intermodulation 885 kHz to 1.25 MHz

1.25 to 1.98 MHz

1.98 to 2.25 MHz

–45 dBc per 30 kHz –8 dBm per 30 kHz –55 dBc per 30 kHz

Absolute level

Nominal composite RF input signal level

–40 dBm at 0 dB attenuation –9 dBm at max. attenuation

An input signal level of –40 dBm provides maximum output power

Configurable input level Range Step size

31 dB 1 ± 0.5 dB ±10% of attenuation monotonic

Composite RF Output power (see Note 1 at end of table)

37.7 dBm (5.9 Watts) at remote antenna port with –40 dBm input

Configurable RF Output Range Step size

31 dB at remote unit 1 ±0.5 dB ±10% of attenuation monotonic

Transmit path insertion loss 2.4 dB maximum

RF Reverse Path - 1900 MHz

System Bandwidth 20 MHz AD band, 25 MHz

DBE, BEF, and EFC bands.

Frequency range AD DBE BEF EFC

1850 to 1870 MHz 1865 to 1890 MHz 1870 to 1895 MHz 1885 to 1910 MHz

Propagation delay 2.5 μs Maximum Excludes fiber delay

Configurable propagation delay Range Step size

Gain flatness Band flatness Channel flatness

Gain of reverse path Overall gain

Gain variation

Out-of-band rejection –40 dB at >

Page 2-26

0 to 63 μs

0.1μs ±1 100 ns

1.5 dB across frequency range ±1 dB variation across any 1.25 MHz channel

30 ± 2 dB at band center at room temperature 3 dB over temperature

±17.5 MHz from

center of subband

Plus standard propagation delay

ALC not invoked

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Table 2-7. SCS 1900 MHz System Nominal Specifications, continued

PARAMETER SPECIFICATION REMARKS

Spurious (in-band self gener-

–110 dBm referred to input ALC not invoked

ated)

Intermodulation –62 dBc two tones at –50 dBm

System noise figure 8 dB at mid-band ALC not invoked

Configurable RF output Range Step size

31 dB 1 ± 0.5 dB ± 10% of attenuation monotonic

Blocking dynamic range 70 dB

Level limiting ALC threshold –40 dBm ± 3 dB instantaneous

Level limiting ALC range 30 dB

RF Forward and Reverse Path Modulation Accuracy

Service–Mod Type–Parameter TDMA–π/4-DQSK–rms EVM GSM–GMSK–rms phase error EDGE–8PSK–rms EVM

EIA-97D–CDMA–rho factor

7% 4º 7%

0.97%

Note: Per Industry Canada Section 5.3 - The rated output power of this equipment is for single carrier operation. For situations where multiple carrier signals are present, the rating would have to be reduced by 3.5 dB, especially where the output signal is re-radiated and can cause interference to adjacent band users. This power reduction is to be by means of input power or gain reduction and not by an attenuator at the output of the device.

Page 2-27

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Table 2-8. Host Unit Nominal Specifications

PARAMETER SPECIFICATION REMARKS

Physical/Environmental/ Electrical - Host Unit

Dimensions (H×W×D) Rear Access

3.5 × 17.1 × 12.2 inches (88 × 433 × 311 mm)

Front Access

3.5 × 17.2 × 15.3 inches (88 × 437 × 389 mm)

Mounting 19- or 23-inch rack EIA or WECO

Weight 18 lbs. (8.2 kg)

Weather resistance Indoor installation only

Operating temperature 0º to 50º C (32º to 122º F)

Storage temperature –40º to 70º C (–40º to 158ºF)

Humidity 10% to 90% No condensation

Optical ports UPC/SC

Dimension for width does not include the mounting brackets which can be installed for either 19- or 23-inch racks.

External alarm connector Screw-type terminals NO and NC relay contacts

DC power connector Screw-type terminal strip

RF coaxial cable connectors 50 ohm N-type (female) 50 ohms input/output impedance

Service connector DB-9 (female) RS-232 DTE interface

Auxiliary connector DB-9 (female) Not used with SCS systems

CAN connectors RJ-45 jack

Voltage input Nominal ± 24 or ± 48 VDC ± 21 to ± 60 VDC

Power consumption 55 watts

Current rating 1 Amp at –48 VDC

Reliability at 25ºC MTBF 80,000 hours Excluding fans

Table 2-9. Host Unit and Remote Unit WDM Nominal Specifications

PARAMETER SPECIFICATION REMARKS

Optical - WDM

Passband 1310 nm ± 20 nm

1550 nm ± 20 nm

Forward path insertion loss Host WDM Remote WDM

0.7 dB

0.3 dB

Does not include connector loss

Reverse path insertion loss Host WDM Remote WDM

0.3 dB

0.7 dB

Does not include connector loss

Isolation > 30 dB minimum

Return loss (Reflectance) < –50 dB All input ports

Page 2-28

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Table 2-10. Remote Unit Nominal Specifications

PARAMETER SPECIFICATION REMARKS

Physical/Environmental/ Electrical - Remote Unit

Dimensions (L×W×D) Single-Band

29.4 × 9.7 × 5.7 inches

(747 × 246 × 145 mm) Dual-Band and Interim Single Band

37.3 × 10.2 × 7.5 inches

(947 × 259 × 191 mm)

Mounting Pole, wall, or strand mounted Requires accessory kit for strand

mounting

Weight Single-Band Dual-Band and Interim Single

51.2 lbs. (23.2 kg)

90.5 lbs. (41.0 kg)

Without solar shields installed

Band

Weather resistance (see Note) NEMA-6, IEC IP67 Indoor or outdoor installation

Lightning protection 20 kA IEC 1000-4-5 8/20 µs

waveform

Provided by external lightning protector (accessory)

Operating temperature –30º to 50º C (–22º to 122º F)

Storage temperature –40º to 70º C (–40º to 158ºF)

Humidity 10% to 90% No condensation

AC power connector Mini 3-pin 3-wire power cable included

Antenna connector(s) 50 ohm N-type (female) 50 ohms input/output impedance

Optical port(s) APC/SC hardened adapter

Voltage input 90 to 265 VAC, 47 to 63 Hz

60 to 89 VAC, 47 to 63 Hz

Standard Option

Power consumption Single-Band (all types)

Dual-Band

300 VA at 120 VAC

600 VA at 120 VAC

Current rating Single-Band (all types) Dual-Band

2.5 Amps at 120 VAC

5.0 Amps at 120 VAC

Requires 15 Amp circuit

Reliability at 25ºC MTBF - 50,000 hours

Note: The SCS remote unit has been tested to assure it meets the dust and water resistance requirements of IP67 as specified by IEC Publication 60529. These tests were conducted using closure caps attached to the remote unit cable ports. To assure the dust and water resistance level is maintained, it is the responsibility of the user to select AC power, antenna, and fiber optic cable assemblies that have a dust and water resistance level of IP67 or higher. If user is uncertain of cable manufacturers that meet this requirement, please contact ADC Technical Assistance.

Page 2-29

ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

Blank

Page 2-30

SECTION 3: OPERATION

Content Page

1 BEFORE STARTING OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

1.1 Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

1.2 Readiness Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

2 TURN-UP SYSTEM AND VERIFY OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

2.1 Reference Procedure: Determine Forward Path Input Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

2.2 Reference Procedure: Enter Site Name and Site Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

2.3 Reference Procedure: Enter Host Forward Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11

2.4 Reference Procedure: Determine Output Signal Level at RU Antenna Port . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

2.5 Reference Procedure: Enter Remote Forward Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13

2.6 Reference Procedure: Enter Host Reverse Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15

2.7 Reference Procedure: Enter Host Forward and Reverse Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

_________________________________________________________________________________________________________

ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION

1 BEFORE STARTING OPERATION

This section provides guidelines for turning-up the Digivance system, verifying that all units are operating properly, testing to ensure that all performance requirements are satisfied, and correcting any installation problems. This process assumes that the various units have been installed in accordance with the system design plan.

1.1 Tools and Materials

The following tools and materials are required in order to complete the procedures in this section:

• Portable spectrum analyzer or RF power meter

• DC voltmeter

• External RF and optical attenuators (if specified in system design plan)

• PC-type computer with Digivance Element Management System (EMS) Version 3.01 software installed

• Straight-through RS-232 DB-9 interface cable (accessory)

•Handset

•Pencil or pen

• Writing pad

Page 3-1

ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION

1.2 Readiness Check

Before starting the turn-up process, inspect the complete Digivance system to verify that all components of the system are ready to be powered-up. This will ensure that no units of the system will be damaged during turn-up and that all existing systems will continue to function properly.

1.2.1 Host Unit Installation Checks

Complete the following checks at the HU prior to starting the turn-up process:

1. Verify that the ON/OFF switch on the HU is in the OFF position (press O).

Note: When connecting the equipment to the supply circuit, be sure to check equipment nameplate ratings to avoid overloading circuits which may cause damage to over-current protection devices and supply wiring.

2. At the fuse panel, install a 3 Amp GMT fuse in the circuit that supplies DC power to the HU.

3. Using a DC voltmeter, verify that the DC voltage level at the HU power terminals is between ± 21 to ± 60 VDC (nominal ± 24 or ± 48 VDC). The DC power provided to the HU can be either polarity.

4. Verify that all electrical and optical connections have been completed and that all optical fibers, coaxial cables, and wires are properly routed and secured.

1.2.2 Remote Unit Installation Checks

Complete the following checks at the RU prior to starting the turn-up process:

1. Verify that all electrical and optical connections have been completed and that all optical fibers, coaxial cables, and wires are properly routed and secured.

2. At the AC breaker box, make sure the circuit breaker for the circuit that supplies AC power to the RU is in the open (off) position.

2 TURN-UP SYSTEM AND VERIFY OPERATION

The process of turning-up the system and verifying operation involves powering up the various system components, verifying that the LED indicators show normal operation, setting the site number and name, adjusting the RF signal levels, and adjusting the path delay.

Note: SCS systems that include a dual-band RU are comprised of two systems that operate and function independently of each other. Each system can be independently turned-up, tested, and placed into service. The EMS will recognize each system regardless of the frequency/band and will display the appropriate screens. The frequency/band can be verified by clicking on the HOST Host tab and on the REMOTE STM tab. The frequency/ band for the selected system will be displayed on the right side of the screen.

Page 3-2

ADCP-75-187 • Issue 3 • September 2006 • Section 3: OPERATION

Each Digivance system must be turned-up separately before being networked together with multiple systems through the CAN interface. Use the following procedure to turn-up each Digivance system:

1. Temporarily disconnect the external alarm system or notify the alarm system provider that testing is in progress.

2. If the HU is networked together with multiple HU’s, temporarily disconnect the CAN cables from the NET IN and NET OUT ports of the HU.

Note: By default, all HU’s and RU’s are programmed with the same site number and name. This can cause problems for the EMS if multiple HU’s with the same site number and site name are networked together through the CAN interface. It is therefore necessary to temporarily disconnect the CAN interface cables from the HU when it is being configured for operation until a unique site number and name can be assigned.

3. Determine if the forward path composite input signal level at the host unit RF IN port(s) is appropriate to produce the required RF output signal level. Note that 800/900 MHz SMR host units have two forward path RF ports. Adjust by installing an external attenuator if necessary. For 800/900 MHz SMR systems., the optimum input signal level is –20 dBm Refer to Section 2.1 for the calculation and adjustment procedure.

4. At the HU: Place the ON/OFF switch on the HU in the ON position (press I).

5. At the RU: Place the AC circuit breaker switch in the closed (ON) position.

6. Wait 6 to 10 seconds for the HU and the RU to initialize and then observe the LED indicators on the HU and RU. Refer to Section 4: Maintenance for the troubleshooting procedures if the indicators do not respond as specified in Table 3- 1.

Table 3-1. LED Indicator Operation at Initial Turn-Up

REAR ACCESS HOST UNIT FRONT ACCESS HOST UNIT REMOTE UNIT

POWER – Green POWER – Green

STANDBY – Off STANDBY – Off

HOST UNIT – Green HOST UNIT – Green

REMOTE UNIT – Green REMOTE UNIT – Green

DRIVE 851–869 – Green, Yellow, or Red DRIVE 935–940 – Green, Yellow, or Red

FWD/REV (PORT 1/PORT 2) – Green FWD/REV (PORT 1/PORT 2) – Green

DRIVE – Green, Yellow, or Red

STATUS – Off

Note: This LED will turn red for 6 to 10 seconds while the RU initializes and then turn off.

7. Measure the input optical power level at the HU and RU and verify that the optical power level received at the HU and RU is within –15 to –25 dBm. Refer to Section 4: Maintenance for the optical power test procedure.

8. Connect the EMS computer (if not already connected) to the SERVICE connector on the HU front panel. If necessary, a separate laptop computer loaded with the EMS software can be temporarily connected and used to initially configure the system.

Page 3-3

ADC DSCSMR2P Users Manual

Specifications and Main Features

Frequently Asked Questions

User Manual