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MDS P-60/P-60 HL Reference Manual
MDS 05-2818A01, Rev. C
3.6 Digital Interface/Utility Board Connections
(P/N 03-1467A21)
The Digital Interface/Utility Board serves as the connection point for all data
interface cabling to the MDS P-50. Route the cabling to the Interface/Utility
Board through the weathertight bushing on the bottom of the enclosure (also
used for the antenna coaxial cable). Tighten the bushing after installing the
interface cable.
Connector J1 on the Digital Interface/Utility Board is used for all data cabling
terminations. Refer to
Table 6
for a summary of the required pin connections.
Figure 19 on Page 37
shows a detailed view of the Digital Interface/Utility
Board.
*DSR wired to +8 V in the transceiver.
†
Not applicable for x710 or x810 radios, which are asynchronous
NOTES
1. The radio is configured as DCE (Data Communications Equipment) as opposed to
DTE (Data Terminal Equipment).
2. These lines are inputs: ETC, TXD and RTS.
3. These lines are outputs: TC, RC, RXD, CTS, DSR and DCD.
4. For asynchronous operation, make no connection to Pins 8, 9 or 10.
Table 6. Interface/Utility Board J1 Connections
Pin Number & Description
Pin Number & Description
1. Signal & Protective Ground
7. Data Carrier Detect (DCD)
2. Transmit Data In (TXD)
8. Transmit Clock (TC)
Synchronous Operation Only
†
3. Received Data Out (RXD)
9. Receive Clock (RC)
Synchronous Operation Only
†
4. Request-To-Send (RTS)
10. External Transmit Clock (ETC)
Synchronous Operation Only
†
5. Clear-To-Send (CTS)
11. Received Signal Strength
(RSSI)
6. Data Set Ready (DSR)*
12. AC Failure (Alarm)
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