Pro Intercom BP1 Operating Instructions Manual

BP1

Por ta ble Head set Sta tion

Op er at ing In struc tions & Con nec tions

The fol low ing in struc tion are for the BP1 Beltpack. The HS2 Fixed Head set Sta tion’s cir cuitry is iden ti cal. Me chan i cal lay ­out and the man ner of con nec tion are dif fer ent. See HS2 Fam ily page for con nec tor in struc tions for HS2s.

1. Plug a head set into the XLR type 4-pin socket on the back of the unit. The rear panel con nec tions are de tailed on the
next page. In Pro In ter com sys tems, the phase of the ear phone is the re verse of that some times used. This was done to
re duce the ef fect that the head set con nec tor and wir ing has on the head set sta tion bridg ing im ped ance and ‘Sidetone’
(See #8) ad just ment sta bil ity. Ei ther stan dard of head set wir ing will work with Pro In ter com head set sta tions.

2. Plug the stan dard mi cro phone ca ble from your power sup ply or mas ter sta tion into the XLR 3-pin type socket on the
back of the unit.

3. Press the mic. but ton and partly turn up the ‘Lis ten level’ con trol on your unit and oth ers on the same cir cuit as your ­self.

4. You should now be able to com mu ni cate with any of these other out sta tions.

5. The thumb op er ated ‘Lis ten-level’ con trol reg u lates the loud ness of your head set ear phone(s). It has NO ef fect on the
mi cro phone level, or the vol ume that oth ers hear.

6. The mi cro phone am pli fier gain is fac tory ad justed to suit most types of head set mi cro phones. It con tains a lim iter/com ­pres sor which com pen sates for dif fer ences in mi cro phone out put and voice lev els.

(Beltpack)

7. The flash (sig nal) push but ton flashes a light in all out sta tions con nected to your cir cuit. It is used to at tract at ten tion in
the event that a user has re moved his/her head set.

8. The screw driver pre set con trols the level of your own voice in your head set. This ad just ment is called ‘Sidetone’. This is
set at the fac tory at a level suit able to the ma jor ity of the us ers. This can be al tered for per sonal pref er ence or ad justed for
deep can cel la tion al low ing the head set to be re moved and used to mon i tor.

9. The BP1 is com pat i ble with Clear-Com® and other, lesser-known 200W un bal anced party-line head set in ter com sys ­tems.

Spec i fi ca tions:
Head set Mi cro phone Im ped ance: 200W dy namic, 30W to 1 KW ac cept able, or 1.2~1.8kW electret..
Head set Ear phone Im ped ance: 150-600W pre ferred, 8W - 4 KW ac cept able.
Volt age: 24V DC nom i nal, 18-30V DC ac cept able.
Cur rent con sump tion: 10 mA with speech, 30 mA with sig nal lamp ac ti vated.
Lamp type: 4-seg ment 20mA LED )
Line bridg ing im ped ance: 200W un bal anced
Sidetone can cel la tion: 0dB to 55dB

Con trols:

Talk: Push on/push off, self in di cat ing switch
Lis ten level: Thumbwheel op er ated po ten ti om e ter
Sig nal: Non-latch ing push but ton switch.
Sidetone: Screw driver ad just, re cessed po ten ti om e ter.

(Con tin ued on next page)

Phone: [phone] Or ders and Tech sup port: [phone] Fax: [phone]

Printed in U.S.A

sup [e-mail] Skype: intercom4pros

Pro In ter com LLC

PO Box 7035 Al gon quin Il li nois 60102-7035

Rev.3_01.13

Now you can use head sets with electret
mi cro phones!

Rear (Back) Panel Con nec tions

4-pin Male XLR

Mic. Gnd. è

Mic. + è

On wards to Next Sta tion

ç Ear +

ç Ear 0

To/From Sys tem

Head set

If you don’t read any thing else, please read this!!!

By con ven tion, in or der to avoid any con fu sion with low im ped ance mi ­cro phone jacks, the fe male jack on in ter com equip ment is con sid ered
the in put, while the male jack is in tended to be used to loop on wards to
other sta tions in the sys tem. Re vers ing this or der will not ef fect per for ­mance, but does make it more prob a ble that a re ver sal of pins 2 and 3
will oc cur. This is the sin gle most com mon cause of fail ure in both

beltpacks and in com plete in ter com sys tems. The re ver sal will ap ply

24VDC to the com mu ni ca tions con duc tor which will, at a min i mum,
cause the sig nal light sys tem to be come er ratic and even tu ally fail,
caus ing in ter nal dam age to the beltpack(s).