3.9.3 Printer Transient Module (PTRM)
The PTRM provides sufficient transient protection to the RS-232 output to comply with the applicable codes
for wiring leaving the confines of the control box, as well as the proper isolation of the signal to prevent damage
or interference caused by connection to certain EDP devices.
3.10 Digital Communicator Operation (7100-D Model)
The 7100-D digital communicator model features numerous formats for communication to a central station.
The 7100-D provides the following functions:
• Line seizure - takes control of the phone lines, disconnecting any premises phones using the same lines.
• Off/On-Hook - perform on and off-hook status to phone lines
• Listen for dial tone - 440 Hz tone typical in most networks
• Dialing the Central Station phone number - programmable
• Discern proper Central Station “ACK” and “Kiss-off” tone
• Transmit data to the Central Station
• Verify that data has been accepted by the Central Station
• Hang-up and release phone lines
• Communicate in a variety of formats
CAOM Module
Designation Description Comments
TB1-1 NAC1 NAC Circuit 1, Class A return (+)
TB1-2 NAC1 NAC Circuit 1, Class A return ( - )
TB1-3 NAC2 NAC Circuit 2, Class A return (+)
TB1-4 NAC2 NAC Circuit 2, Class A return ( - )
TB2-1 SLC1 SLC Circuit 1, Class A return (+)
TB2-2 SLC1 SLC Circuit 1, Class A return ( - )
TB2-3 SLC2 SLC Circuit 2, Class A return (+) (7100-2, -2D only)
TB2-4 SLC2 SLC Circuit 2, Class A return ( - ) (7100-2, -2D only)
MCOM Module
TB1-1 Municipal Output (+)
TB1-2 Municipal Output ( - )
Jumpers
W1 MCOM UP for Polarity Reversal operation
DOWN for city master box/releasing operation
W2 MCOM UP for Polarity Reversal operation
DOWN for city master box/releasing operation
PTRM Module
Jumper
W1 PTRM OUT for supervision of PTRM Module
IN for no supervision
NOTE: The BSM is shipped with jumpers installed on the middle three pairs of pins on J2. These jumpers must
be removed when the PTRM is installed.
Table 3 Optional Module Wiring Connections
9000-0447 19 of 43
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