User Manual

ADCP-75-179 • Preliminary Issue A • September 2004 • Section 3: Operation

Page 3-3

2.1 Turn-Up Procedure

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.

3. Determine if the forward path composite input signal level at each host unit RF IN port

(851–869 FORWARD and 935–940 FORWARD) is appropriate to produce the required

RF output signal level. Adjust by installing an external attenuator if necessary. Refer to

Section 2.3 for the calculation and adjustment procedure.

4. Connect the EMS computer (if not already connected) to the SERVICE connector on the

HU or STM front panel. If necessary, a separate laptop computer loaded with EMS Version

3.01 software can be temporarily connected and used to initially configure the system.

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

6. At the RU: Make sure the RF switch on the LPA is in the OFF position. Then place the

ON/OFF switch on the STM in the ON position (press I).

7. Wait 6 to 8 seconds for the HU and the RU modules to initialize and then observe the LED

indicators on the HU, STM and LPA. Refer to Section 4 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

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.

HOST UNIT SPECTRUM TRANSPORT MODULE 35 WATT LPA

POWER – Green

AC POWER – Green FAIL – Off

STANDBY – Off STANDBY – Off

SHUTDOWN – Red

HOST UNIT – Green HOST UNIT – Green

Digital Display – FORCED

SHUTDOWN

REMOTE UNIT – Green

STM – Green

DRIVE 851–869 and DRIVE

935–940 – Green, Yellow, or Red

PA – Green

FWD/REV (PORT 1/PORT 2) –

Green

VSWR – Green

FWD/REV (PORT 1/PORT 2) –

Green