Mercury Messenger Modem - Page 19

Messenger Modem
®
Page 19
Messenger Modem Wiring Diagram
internal modem, connected to Modem Port (TB-2)
for:
Mini-AT
To
telephone
line
Dust Cap
TB1
J2
Messenger Modem Board p/n 40-3000
Mini-AT Board p/n 40-2335
RS-232 Conn. &
Cable Assy.
40-1728
Notes:
1. Set baud rate in instrument to 2400 at item 272
2. Set Communication Delays to 25 seconds at items 171 & 172
6 CELL
Alkaline
Battery
Pack
40-1595
or
40-1865
J7
J8
Rxd
Txd
COM
TB2
J6
3-Cond Serial Cable
40-2133-8
Battery Cable
40-2565-10
TxD RxD COM
JP3