61200780L1-1C © 2004 ADTRAN, Inc. 37ATLAS 800 Series System Manual Option Module PinoutsEngineering GuidelinesQuad E1/PRA Option ModuleUsing the provided adapter cables, the DB-62 port of the Quad E1/PRA Option Module (P/N 1200264L1)supplies a DB-15 connection (see Pinout 12). See Pinout 13 for the DB-62 interface pinout.Pinout 12. Quad E1/PRA Module (DB-15)Pin Name Description1 RT Receive Tip2 GND Ground3 TT Transmit Tip4 GND Ground5 GND Ground7 GND Ground9 RR Receive Ring11 TR Transmit RingPinout 13. Quad E1/PRA Module (DB-62)Pin Name Description Pin Name Description111 Pins that are not identified are not used. P(1-4) indicates the PortP4 TT Port 4 Transmit Tip 42 GND Ground2 P4 TR Port 4 Transmit Ring 43 P4 RT Port 4 Receive Tip3 GND Ground 44 P4 RR Port 4 Receive Ring6 GND Ground 45 GND Ground7 P3 TT Port 3 Transmit Tip 48 GND Ground8 P3 TR Port 3 Transmit Ring 49 P3 RT Port 3 Receive Tip9 GND Ground 50 P3 RR Port 3 Receive Ring12 GND Ground 51 GND Ground13 P2 TT Port 2 Transmit Tip 54 GND Ground14 P2 TR Port 2 Transmit Ring 55 P2 RT Port 2 Receive Tip15 GND Ground 56 P2 RR Port 2 Receive Ring18 GND Ground 57 GND Ground19 P1 TT Port 1 Transmit Tip 60 GND Ground20 P1 TR Port 1 Transmit Ring 61 P1 RT Port 1 Receive Tip21 GND Ground 62 P1 RR Port 1 Receive Ring
