ADC 150-2205-04, Инструкция по установке и проверке

Страница: 68 / 112

800-357-104-01, Revision 01
56 September 29, 2000 HMS-357 List 4 and List 5
I
NSTALLING A
L
INE
U
NIT
(HLU)
Figure 35. Installing a Line Unit into the Wideband Chassis
Step Procedure Installer Check
ü ü ü ü
Whenever installing or removing units from the HMS-357 chassis, be sure to wear an
antistatic wrist strap and connect it to the ESD strap input.
1 If you have not already done so, open the chassis front cover by unscrewing the two hold-down lugs on
the upper corners. The cover folds down.
H
2 Be sure to plug your ESD wrist strap into the ESD above the HMU slot.
H
3 Slide the line unit into the card guides for the desired slot, then push the unit in until it touches the
backplane card-edge connector and the retaining latch on the front panel opens (
Figure 35 ).
H
4 Place your thumbs on the line unit front panel and push the line unit into the card-edge connector until
it is entirely within the card guides and the retaining latch closes. This indicates that the card is properly
seated.
H
Do not enable alarms at this point in the procedure. You will not fully configure the HLU until the line units
are placed into service. This procedure is detailed in
“Placing the Line in Service” on page 59 .
5 If you plan to install remote units, proceed to “Installing a Remote Unit (HRU)” on page 57 , otherwise;
proceed to “Setting Up Circuit IDs” on page 58 .
H
Installer Signature
? ? ? ?
Date
HLU-319
E strap input SD