Radyne OM20 Specifications download pdf (Page 70)

OM20 Universal Outdoor Modem Rear Panel Interfaces

MN-OM20– Revision 5 5–4

configuration is available on the OM20 GUI. Refer to Table 5.3 for the Remote/Terminal

connector pinout; and

Section 6 for the port interface specification.

The OM20’s internal M&C system is connected to most of the circuitry on any board contained

in the chassis. These connections provide status on the condition of the circuitry and provide the

data required for the various measurements the OM20 provides. The on-board M&C processes

this information and generates status indications and alarms when necessary. Detailed status

information is available via the GUI, Remote port, and the Form-C fault connections available on

this connector. This summary information can be connected to external equipment, switches, or

alarms. Refer to Table 5.3 for the Form-C connector pin-outs.

Table 5.3. Remote/Terminal/Fault Connector (J2)

Pin No. Signal Name Signal Direction

A Receive Data RS-232 RXD-232 Input

B Transmit Data RS-232 TXD-232 Output

C AGC Voltage --- ---

D Transmit Data RS-485 (+) TX-485-B Output

E Transmit Data RS-485 (-) TX-485-A Output

F Receive Data RS-485 (+) RX-485-B Input

G Receive Data RS-485 (-) RX-485-A Input

H Ground GND ---

J Mod Fault – C MF-C ---

K Mod Fault – NC MF-NC ---

L Mod Fault – NO MF-NO ---

M Demod Fault DF-C ---

N Demod Fault – NC DF-NC ---

S Demod Fault – NO DF-NC ---

R Ground GND ---

U Default --- ---

P Default --- ---

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 219 220

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Radyne OM20 Specifications Page 70