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2 SPEC I FI CA TIONS
GEN ERAL
Trans mis sion Rate:
Trans mis sion For mat:
Power Re quire ment:
Tem per a ture Range:
Phys i cal Size:
Ra dio and Wire line:
Data Con nec tor:
In di ca tors:
Re ceive Au dio:
Trans mit Au dio:
Squelch De tec tion:
PTT:
4 Wire Re ceive:
4 Wire Trans mit:
DIP SWITCH SET TINGS
Trans mit ter Level:
Re ceiver Level:
Squelch Po lar ity:
Car rier De tect De lay:
As sert RTS:
RTS/CTS De lay:
B1474
1200 Baud (Bell 202 sig naling) or V.23 if fac tory in stalled
8 data bits, no par ity, 1 stop bit if mo dem buff er ing is se lected;
oth er wise trans par ent
Op er ates from 12 to 30 VDC. Cur rent drain is 110 mA with the LEDs on,
65 mA with the LEDs off.
o
o
-30
C to +50
C
Approx. 10" x 5" x 1", in side a metal en clo sure
Com pres sion screw ter mi nals lo cated in side the en clo sure
RS232-C com pat i ble, con nec tions avail able through a DB-25S socket
lo cated on the side of the en clo sure
Power ON, TXD, RXD, CD, RTS, CTS, BUSY
Sin gle ended, AC cou pled, -30 dBm to 0 dBm
Sin gle ended, AC cou pled, -20 dBm to 0 dBm
Sin gle ended, 1M ohm im ped ance, DC cou pled, de tec tion range
0 to 10 volts, po lar ity is DIP switch selectable
Clo sure to ground for ac tive, 0.5 A @ 50 volts max.
Bal anced, 600 ohm im ped ance, -30 dBm to 0 dBm (op er ates full or
half du plex)
Bal anced, 600 ohm im ped ance, -20 dBm to 0 dBm (op er ates full or
half du plex)
-20 dBm to 0 dBm
-30 dBm to 0 dBm
Se lects high or low go ing squelch mon i tor sig nals.
5 or 50 msec
Forces RTS on.
20, 35, 50, 100, 200, 300, 500, or 1000 msec. Al lows the trans mit ter
time to reach full power be fore data is trans mit ted.
BARNETT EN GI NEERING LTD.
PAGE 5
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