Ricoh B089 Service Manual page 715

680340 to 680342(H) - PSTN-1 line settings
680340
Bits 0 and 1: PSTN access method from behind a PABX.
Bit 1 0
0 0
0 1
1 0
1 1
Bit 2: Telephone line type.
0: PSTN, 1: PABX
Bits 3 and 4: Dialing type.
Bit 4 3
0 0
0 1
1 0
1 1
Bits 4 to 7: Not used
680341: PSTN access number for loop start
Access number Hex value to program (BCD)
0
#
9
00
#
99
680342
Bit 0: Transmission disabled
0: Tx and Rx, 1: Rx only
Bit 1: Memory Lock reception
0: Enabled, 1: Disabled
Bits 2 to 7: Not used
680348 to 68034A(H) - PSTN-2 line settings
680360(H) – Polling ID Code (Low – Hex)
680361(H) – Polling ID Code (High – Hex)
680362(H) - Confidential ID (low - BCD)
680363(H) - Confidential ID (high - BCD)
680364(H) - Memory Lock ID (low - BCD)
680365(H) - Memory Lock ID (high - BCD)
SM
Setting
Loop start
Ground start
Flash start
Not used
Setting
Pulse dialing
Not used
Tone dialing
Not used
F0
#
F9
00
#
99
3-75
SERVICE RAM ADDRESSES
B576